diff --git a/client/cli/Cargo.toml b/client/cli/Cargo.toml
index 686a0b8dab..24e5c48029 100644
--- a/client/cli/Cargo.toml
+++ b/client/cli/Cargo.toml
@@ -10,8 +10,8 @@ codec = { package = "parity-scale-codec", version = "3.0.0" }
 url = "2.2.2"
 
 # Substrate
-sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-service = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-service = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
diff --git a/client/collator/Cargo.toml b/client/collator/Cargo.toml
index 7041a4234f..7a94e7699c 100644
--- a/client/collator/Cargo.toml
+++ b/client/collator/Cargo.toml
@@ -11,11 +11,11 @@ parking_lot = "0.12.0"
 tracing = "0.1.25"
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-node-primitives = { git = "https://github.com/paritytech/polkadot", branch = "master" }
@@ -33,9 +33,9 @@ cumulus-relay-chain-interface = { path = "../relay-chain-interface" }
 async-trait = "0.1.42"
 
 # Substrate
-sp-maybe-compressed-blob = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-maybe-compressed-blob = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-node-subsystem-test-helpers = { git = "https://github.com/paritytech/polkadot", branch = "master" }
diff --git a/client/consensus/aura/Cargo.toml b/client/consensus/aura/Cargo.toml
index c493595e5d..10ec8a592d 100644
--- a/client/consensus/aura/Cargo.toml
+++ b/client/consensus/aura/Cargo.toml
@@ -12,22 +12,22 @@ futures = "0.3.21"
 tracing = "0.1.34"
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus-slots = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-application-crypto = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus-slots = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-application-crypto = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-client-consensus-common = { path = "../common" }
diff --git a/client/consensus/common/Cargo.toml b/client/consensus/common/Cargo.toml
index e2af49ac5c..dab0e30c4e 100644
--- a/client/consensus/common/Cargo.toml
+++ b/client/consensus/common/Cargo.toml
@@ -13,13 +13,13 @@ futures = "0.3.21"
 tracing = "0.1.34"
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-trie = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-trie = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", branch = "master" }
@@ -31,7 +31,7 @@ cumulus-relay-chain-interface = { path = "../../relay-chain-interface" }
 futures-timer = "3.0.2"
 
 # Substrate
-sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-test-client = { path = "../../../test/client" }
diff --git a/client/consensus/relay-chain/Cargo.toml b/client/consensus/relay-chain/Cargo.toml
index 6fc1e8aa79..9f126af278 100644
--- a/client/consensus/relay-chain/Cargo.toml
+++ b/client/consensus/relay-chain/Cargo.toml
@@ -12,16 +12,16 @@ parking_lot = "0.12.1"
 tracing = "0.1.34"
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-client-consensus-common = { path = "../common" }
diff --git a/client/network/Cargo.toml b/client/network/Cargo.toml
index 4f82906d4f..e68de1a6e5 100644
--- a/client/network/Cargo.toml
+++ b/client/network/Cargo.toml
@@ -15,13 +15,13 @@ parking_lot = "0.12.1"
 tracing = "0.1.34"
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-node-primitives = { git = "https://github.com/paritytech/polkadot", branch = "master" }
@@ -37,13 +37,13 @@ tokio = { version = "1.19.2", features = ["macros"] }
 url = "2.2.2"
 
 # Substrate
-sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-test-utils = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-test-utils = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-client = { git = "https://github.com/paritytech/polkadot", branch = "master" }
diff --git a/client/pov-recovery/Cargo.toml b/client/pov-recovery/Cargo.toml
index ea937ef5b1..c855644742 100644
--- a/client/pov-recovery/Cargo.toml
+++ b/client/pov-recovery/Cargo.toml
@@ -13,12 +13,12 @@ rand = "0.8.5"
 tracing = "0.1.34"
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-maybe-compressed-blob = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-maybe-compressed-blob = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-node-primitives = { git = "https://github.com/paritytech/polkadot", branch = "master" }
@@ -37,6 +37,6 @@ tokio = { version = "1.19.2", features = ["macros"] }
 cumulus-test-service = { path = "../../test/service" }
 
 # Substrate
-sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-test-utils = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-test-utils = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
diff --git a/client/relay-chain-inprocess-interface/Cargo.toml b/client/relay-chain-inprocess-interface/Cargo.toml
index e0479c3fc0..dfdb786a40 100644
--- a/client/relay-chain-inprocess-interface/Cargo.toml
+++ b/client/relay-chain-inprocess-interface/Cargo.toml
@@ -12,19 +12,19 @@ parking_lot = "0.12.1"
 tracing = "0.1.34"
 
 # Substrate
-sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus-babe = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-sysinfo = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus-babe = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-network = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-sysinfo = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-cli = { git = "https://github.com/paritytech/polkadot", branch = "master" }
@@ -38,7 +38,7 @@ cumulus-relay-chain-interface = { path = "../relay-chain-interface" }
 [dev-dependencies]
 
 # Substrate
-sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", branch = "master" }
diff --git a/client/relay-chain-interface/Cargo.toml b/client/relay-chain-interface/Cargo.toml
index efa5472ebc..00beabe5e8 100644
--- a/client/relay-chain-interface/Cargo.toml
+++ b/client/relay-chain-interface/Cargo.toml
@@ -10,12 +10,12 @@ polkadot-service = { git = "https://github.com/paritytech/polkadot", branch = "m
 
 cumulus-primitives-core = { path = "../../primitives/core" }
 
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 futures = "0.3.21"
 parking_lot = "0.12.1"
diff --git a/client/relay-chain-rpc-interface/Cargo.toml b/client/relay-chain-rpc-interface/Cargo.toml
index d7b6009dc9..b9c6d96a97 100644
--- a/client/relay-chain-rpc-interface/Cargo.toml
+++ b/client/relay-chain-rpc-interface/Cargo.toml
@@ -11,13 +11,14 @@ polkadot-service = { git = "https://github.com/paritytech/polkadot", branch = "m
 cumulus-primitives-core = { path = "../../primitives/core" }
 cumulus-relay-chain-interface = { path = "../relay-chain-interface" }
 
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-storage = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-rpc-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-storage = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-rpc-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+tokio = { version = "1.19.2", features = ["sync"] }
 
 futures = "0.3.21"
 futures-timer = "3.0.2"
diff --git a/client/service/Cargo.toml b/client/service/Cargo.toml
index 687aa0f95a..fe6c9e4b68 100644
--- a/client/service/Cargo.toml
+++ b/client/service/Cargo.toml
@@ -9,17 +9,17 @@ parking_lot = "0.12.1"
 tracing = "0.1.34"
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus-babe = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-service = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus-babe = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-service = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-overseer = { git = "https://github.com/paritytech/polkadot", branch = "master" }
diff --git a/pallets/aura-ext/Cargo.toml b/pallets/aura-ext/Cargo.toml
index 31609ada32..2d9c88f84b 100644
--- a/pallets/aura-ext/Cargo.toml
+++ b/pallets/aura-ext/Cargo.toml
@@ -11,14 +11,14 @@ scale-info = { version = "2.1.1", default-features = false, features = ["derive"
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
 # Substrate
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-application-crypto = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-application-crypto = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 [dev-dependencies]
 
diff --git a/pallets/collator-selection/Cargo.toml b/pallets/collator-selection/Cargo.toml
index 91b3c400a0..1a8e80650d 100644
--- a/pallets/collator-selection/Cargo.toml
+++ b/pallets/collator-selection/Cargo.toml
@@ -19,25 +19,25 @@ rand = { version = "0.8.5", features = ["std_rng"], default-features = false }
 scale-info = { version = "2.1.1", default-features = false, features = ["derive"] }
 serde = { version = "1.0.140", default-features = false }
 
-sp-std = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-staking = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-support = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-system = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-authorship = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-session = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-std = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-staking = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-support = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-system = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-authorship = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-session = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
-frame-benchmarking = { default-features = false, optional = true, git = "https://github.com/paritytech/substrate", branch = "master" }
+frame-benchmarking = { default-features = false, optional = true, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [dev-dependencies]
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = ["std"]
diff --git a/pallets/dmp-queue/Cargo.toml b/pallets/dmp-queue/Cargo.toml
index 846bf801ca..f5d2de3ef5 100644
--- a/pallets/dmp-queue/Cargo.toml
+++ b/pallets/dmp-queue/Cargo.toml
@@ -10,11 +10,11 @@ log = { version = "0.4.17", default-features = false }
 scale-info = { version = "2.1.1", default-features = false, features = ["derive"] }
 
 # Substrate
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -24,8 +24,8 @@ xcm-executor = { git = "https://github.com/paritytech/polkadot", default-feature
 cumulus-primitives-core = { path = "../../primitives/core", default-features = false }
 
 [dev-dependencies]
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 [features]
 default = [ "std" ]
diff --git a/pallets/parachain-system/Cargo.toml b/pallets/parachain-system/Cargo.toml
index d7418b24a1..a6e5a3c1ce 100644
--- a/pallets/parachain-system/Cargo.toml
+++ b/pallets/parachain-system/Cargo.toml
@@ -14,18 +14,18 @@ scale-info = { version = "2.1.1", default-features = false, features = ["derive"
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
 # Substrate
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-externalities = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-trie = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-externalities = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-trie = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-parachain = { git = "https://github.com/paritytech/polkadot", default-features = false, features = [ "wasm-api" ], branch = "master" }
@@ -41,10 +41,10 @@ hex-literal = "0.3.4"
 lazy_static = "1.4"
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-test-client = { path = "../../test/client" }
diff --git a/pallets/session-benchmarking/Cargo.toml b/pallets/session-benchmarking/Cargo.toml
index a9e8724714..defdc185f4 100644
--- a/pallets/session-benchmarking/Cargo.toml
+++ b/pallets/session-benchmarking/Cargo.toml
@@ -14,12 +14,12 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 parity-scale-codec = { version = "3.1.5", default-features = false }
-sp-std = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-support = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-system = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-benchmarking = { default-features = false, optional = true, git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-session = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-std = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-support = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-system = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-benchmarking = { default-features = false, optional = true, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-session = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = ["std"]
diff --git a/pallets/solo-to-para/Cargo.toml b/pallets/solo-to-para/Cargo.toml
index 6a234f49b8..c0f6172c22 100644
--- a/pallets/solo-to-para/Cargo.toml
+++ b/pallets/solo-to-para/Cargo.toml
@@ -10,11 +10,11 @@ codec = { package = "parity-scale-codec", version = "3.0.0", default-features =
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 
 # Substrate
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
diff --git a/pallets/xcm/Cargo.toml b/pallets/xcm/Cargo.toml
index dda5782846..3a579cebc0 100644
--- a/pallets/xcm/Cargo.toml
+++ b/pallets/xcm/Cargo.toml
@@ -9,11 +9,11 @@ codec = { package = "parity-scale-codec", version = "3.0.0", default-features =
 scale-info = { version = "2.1.1", default-features = false, features = ["derive"] }
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
 
diff --git a/pallets/xcmp-queue/Cargo.toml b/pallets/xcmp-queue/Cargo.toml
index 06df500670..e3044ec579 100644
--- a/pallets/xcmp-queue/Cargo.toml
+++ b/pallets/xcmp-queue/Cargo.toml
@@ -11,10 +11,10 @@ rand_chacha = { version = "0.3.0", default-features = false }
 scale-info = { version = "2.1.1", default-features = false, features = ["derive"] }
 
 # Substrate
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -24,14 +24,14 @@ xcm-executor = { git = "https://github.com/paritytech/polkadot", default-feature
 cumulus-primitives-core = { path = "../../primitives/core", default-features = false }
 
 # Optional import for benchmarking
-frame-benchmarking = { default-features = false, optional = true, git = "https://github.com/paritytech/substrate", branch = "master" }
+frame-benchmarking = { default-features = false, optional = true, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [dev-dependencies]
 
 # Substrate
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 xcm-builder = { git = "https://github.com/paritytech/polkadot", branch = "master" }
diff --git a/parachain-template/node/Cargo.toml b/parachain-template/node/Cargo.toml
index 5ef58cb6d4..bbd7b7c6e1 100644
--- a/parachain-template/node/Cargo.toml
+++ b/parachain-template/node/Cargo.toml
@@ -22,41 +22,41 @@ jsonrpsee = { version = "0.14.0", features = ["server"] }
 parachain-template-runtime = { path = "../runtime" }
 
 # Substrate
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-benchmarking-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-transaction-payment-rpc = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-basic-authorship = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-executor = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-rpc = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-rpc-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-service = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-sysinfo = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-transaction-pool-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-frame-rpc-system = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "master" }
-try-runtime-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-benchmarking-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-basic-authorship = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-cli = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-executor = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-keystore = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-network = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-rpc = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-rpc-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-service = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-sysinfo = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-transaction-pool-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-frame-rpc-system = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+try-runtime-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-cli = { git = "https://github.com/paritytech/polkadot", branch = "master" }
@@ -79,7 +79,7 @@ cumulus-relay-chain-interface = { path = "../../client/relay-chain-interface" }
 cumulus-relay-chain-rpc-interface = { path = "../../client/relay-chain-rpc-interface" }
 
 [build-dependencies]
-substrate-build-script-utils = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-build-script-utils = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = []
diff --git a/parachain-template/pallets/template/Cargo.toml b/parachain-template/pallets/template/Cargo.toml
index f0fdb60b18..e100093321 100644
--- a/parachain-template/pallets/template/Cargo.toml
+++ b/parachain-template/pallets/template/Cargo.toml
@@ -16,17 +16,17 @@ codec = { package = "parity-scale-codec", version = "3.0.0", features = ["derive
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 
 # Substrate
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 [dev-dependencies]
 serde = { version = "1.0.132" }
 
 # Substrate
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 [features]
 default = ["std"]
diff --git a/parachain-template/runtime/Cargo.toml b/parachain-template/runtime/Cargo.toml
index 792c238e81..24bf1e0ce7 100644
--- a/parachain-template/runtime/Cargo.toml
+++ b/parachain-template/runtime/Cargo.toml
@@ -12,7 +12,7 @@ edition = "2021"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive"] }
@@ -26,33 +26,33 @@ smallvec = "1.9.0"
 pallet-template = { path = "../pallets/template", default-features = false }
 
 # Substrate
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 pallet-xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
diff --git a/parachains/common/Cargo.toml b/parachains/common/Cargo.toml
index 57a1eaa6ce..27e2288851 100644
--- a/parachains/common/Cargo.toml
+++ b/parachains/common/Cargo.toml
@@ -13,18 +13,18 @@ codec = { package = "parity-scale-codec", version = "3.0.0", features = ["derive
 scale-info = { version = "2.1.1", default-features = false, features = ["derive"] }
 
 # Substrate
-frame-executive = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-frame-support = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-frame-system = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-pallet-assets = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-pallet-authorship = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-sp-io = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-sp-std = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -36,11 +36,11 @@ xcm-executor = { git = "https://github.com/paritytech/polkadot", default-feature
 pallet-collator-selection = { path = "../../pallets/collator-selection", default-features = false }
 
 [dev-dependencies]
-pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = ["std"]
diff --git a/parachains/pallets/parachain-info/Cargo.toml b/parachains/pallets/parachain-info/Cargo.toml
index 9c44da7e74..0e130e9725 100644
--- a/parachains/pallets/parachain-info/Cargo.toml
+++ b/parachains/pallets/parachain-info/Cargo.toml
@@ -9,8 +9,8 @@ codec = { package = "parity-scale-codec", version = "3.0.0", default-features =
 scale-info = { version = "2.1.1", default-features = false, features = ["derive"] }
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 cumulus-primitives-core = { path = "../../../primitives/core", default-features = false }
 
diff --git a/parachains/pallets/ping/Cargo.toml b/parachains/pallets/ping/Cargo.toml
index 960e7563e5..5d9e905968 100644
--- a/parachains/pallets/ping/Cargo.toml
+++ b/parachains/pallets/ping/Cargo.toml
@@ -9,10 +9,10 @@ codec = { package = "parity-scale-codec", version = "3.0.0", default-features =
 scale-info = { version = "2.1.1", default-features = false, features = ["derive"] }
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
 
diff --git a/parachains/runtimes/assets/statemine/Cargo.toml b/parachains/runtimes/assets/statemine/Cargo.toml
index 5f450ba3b6..a2166bf991 100644
--- a/parachains/runtimes/assets/statemine/Cargo.toml
+++ b/parachains/runtimes/assets/statemine/Cargo.toml
@@ -14,38 +14,38 @@ serde = { version = "1.0.140", optional = true, features = ["derive"] }
 smallvec = "1.9.0"
 
 # Substrate
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "master" }
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-multisig = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-proxy = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-uniques = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-utility = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "polkadot-v0.9.27" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-multisig = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-proxy = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-uniques = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-utility = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 kusama-runtime-constants = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -77,7 +77,7 @@ parachains-common = { path = "../../../common", default-features = false }
 hex-literal = "0.3.4"
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = [ "std" ]
diff --git a/parachains/runtimes/assets/statemint/Cargo.toml b/parachains/runtimes/assets/statemint/Cargo.toml
index bbbe289032..4c7c2bcfc8 100644
--- a/parachains/runtimes/assets/statemint/Cargo.toml
+++ b/parachains/runtimes/assets/statemint/Cargo.toml
@@ -14,38 +14,38 @@ scale-info = { version = "2.1.1", default-features = false, features = ["derive"
 smallvec = "1.9.0"
 
 # Substrate
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "master" }
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-multisig = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-proxy = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-uniques = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-utility = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "polkadot-v0.9.27" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", default-features = false , branch = "polkadot-v0.9.27" }
+pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-multisig = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-proxy = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-uniques = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-utility = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 pallet-xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -76,7 +76,7 @@ parachains-common = { path = "../../../common", default-features = false }
 hex-literal = "0.3.4"
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = [ "std" ]
diff --git a/parachains/runtimes/assets/test-utils/Cargo.toml b/parachains/runtimes/assets/test-utils/Cargo.toml
new file mode 100644
index 0000000000..9f9e6478e0
--- /dev/null
+++ b/parachains/runtimes/assets/test-utils/Cargo.toml
@@ -0,0 +1,45 @@
+[package]
+name = "asset-test-utils"
+version = "1.0.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+edition = "2021"
+description = "Statemint parachain runtime"
+
+[dependencies]
+
+# Substrate
+
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+
+# Cumulus
+pallet-collator-selection = { path = "../../../../pallets/collator-selection", default-features = false }
+parachains-common = { path = "../../../common", default-features = false }
+
+[dev-dependencies]
+hex-literal = "0.3.4"
+
+[build-dependencies]
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+
+[features]
+default = [ "std" ]
+std = [
+    "frame-support/std",
+	"frame-system/std",
+	"pallet-balances/std",
+	"pallet-collator-selection/std",
+    "pallet-session/std",
+    "parachains-common/std",
+    "sp-consensus-aura/std",
+    "sp-io/std",
+    "sp-runtime/std",
+    "sp-std/std",
+]
diff --git a/parachains/runtimes/assets/westmint/Cargo.toml b/parachains/runtimes/assets/westmint/Cargo.toml
index 06058937fd..fc7f64916a 100644
--- a/parachains/runtimes/assets/westmint/Cargo.toml
+++ b/parachains/runtimes/assets/westmint/Cargo.toml
@@ -14,38 +14,38 @@ serde = { version = "1.0.140", optional = true, features = ["derive"] }
 smallvec = "1.9.0"
 
 # Substrate
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "master" }
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-multisig = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-proxy = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-uniques = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-utility = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "polkadot-v0.9.27" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", optional = true, default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-multisig = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-proxy = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-uniques = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-utility = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 pallet-xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -76,7 +76,7 @@ parachains-common = { path = "../../../common", default-features = false }
 hex-literal = "0.3.4"
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = [ "std" ]
diff --git a/parachains/runtimes/contracts/contracts-rococo/Cargo.toml b/parachains/runtimes/contracts/contracts-rococo/Cargo.toml
index 0a1278b322..4664291bee 100644
--- a/parachains/runtimes/contracts/contracts-rococo/Cargo.toml
+++ b/parachains/runtimes/contracts/contracts-rococo/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2021"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive"] }
@@ -19,39 +19,39 @@ serde = { version = "1.0.140", optional = true, features = ["derive"] }
 smallvec = "1.9.0"
 
 # Substrate
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-randomness-collective-flip = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-multisig = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-utility = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-contracts = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-contracts-primitives = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-contracts-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-randomness-collective-flip = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-multisig = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-utility = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-contracts = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-contracts-primitives = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-contracts-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 kusama-runtime-constants = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
diff --git a/parachains/runtimes/starters/seedling/Cargo.toml b/parachains/runtimes/starters/seedling/Cargo.toml
index 86933c6e56..24fd4b2d4a 100644
--- a/parachains/runtimes/starters/seedling/Cargo.toml
+++ b/parachains/runtimes/starters/seedling/Cargo.toml
@@ -11,22 +11,22 @@ scale-info = { version = "2.0.0", default-features = false, features = ["derive"
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
 # Substrate
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-pallet-parachain-system = { path = "../../../../pallets/parachain-system", default-features = false }
@@ -35,7 +35,7 @@ parachain-info = { path = "../../../pallets/parachain-info", default-features =
 cumulus-primitives-core = { path = "../../../../primitives/core", default-features = false }
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = [ "std" ]
diff --git a/parachains/runtimes/starters/shell/Cargo.toml b/parachains/runtimes/starters/shell/Cargo.toml
index 26b319f0d0..9ed8e0577d 100644
--- a/parachains/runtimes/starters/shell/Cargo.toml
+++ b/parachains/runtimes/starters/shell/Cargo.toml
@@ -11,21 +11,21 @@ scale-info = { version = "2.1.1", default-features = false, features = ["derive"
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
 # Substrate
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-try-runtime = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false, optional = true }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true , branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -41,7 +41,7 @@ cumulus-primitives-utility = { path = "../../../../primitives/utility", default-
 parachain-info = { path = "../../../pallets/parachain-info", default-features = false }
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = [ "std" ]
diff --git a/parachains/runtimes/testing/penpal/Cargo.toml b/parachains/runtimes/testing/penpal/Cargo.toml
index 4143e07067..4c4b2e006d 100644
--- a/parachains/runtimes/testing/penpal/Cargo.toml
+++ b/parachains/runtimes/testing/penpal/Cargo.toml
@@ -12,7 +12,7 @@ edition = "2021"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = ["derive"] }
@@ -23,35 +23,35 @@ serde = { version = "1.0.140", optional = true, features = ["derive"] }
 smallvec = "1.9.0"
 
 # Substrate
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-benchmarking = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-try-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, optional = true, branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-authorship = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-asset-tx-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
diff --git a/parachains/runtimes/testing/rococo-parachain/Cargo.toml b/parachains/runtimes/testing/rococo-parachain/Cargo.toml
index dd221d8322..4d6c4ca46e 100644
--- a/parachains/runtimes/testing/rococo-parachain/Cargo.toml
+++ b/parachains/runtimes/testing/rococo-parachain/Cargo.toml
@@ -12,29 +12,29 @@ scale-info = { version = "2.1.1", default-features = false, features = ["derive"
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
 # Substrate
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-assets = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 pallet-xcm = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
@@ -57,7 +57,7 @@ parachains-common = { path = "../../../common", default-features = false }
 parachain-info = { path = "../../../pallets/parachain-info", default-features = false }
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = [ "std" ]
diff --git a/polkadot-parachain/Cargo.toml b/polkadot-parachain/Cargo.toml
index c775b9fc78..7be5a1ec1b 100644
--- a/polkadot-parachain/Cargo.toml
+++ b/polkadot-parachain/Cargo.toml
@@ -28,41 +28,41 @@ jsonrpsee = { version = "0.14.0", features = ["server"] }
 parachains-common = { path = "../parachains/common" }
 
 # Substrate
-frame-benchmarking = { git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-benchmarking-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-executor = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-service = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-basic-authorship = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-rpc = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-sysinfo = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "master" }
-try-runtime-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-transaction-pool-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-rpc-system = { package = "substrate-frame-rpc-system", git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-transaction-payment-rpc = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-contracts-rpc = { git = "https://github.com/paritytech/substrate", branch = "master" }
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-benchmarking-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-cli = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-executor = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-service = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-network = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-basic-authorship = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-rpc = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-consensus-aura = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-sysinfo = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+try-runtime-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-transaction-pool-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-rpc-system = { package = "substrate-frame-rpc-system", git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-transaction-payment-rpc = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-contracts-rpc = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-cli = { git = "https://github.com/paritytech/polkadot", branch = "master" }
@@ -85,7 +85,7 @@ cumulus-relay-chain-inprocess-interface = { path = "../client/relay-chain-inproc
 cumulus-relay-chain-rpc-interface = { path = "../client/relay-chain-rpc-interface" }
 
 [build-dependencies]
-substrate-build-script-utils = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-build-script-utils = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [dev-dependencies]
 assert_cmd = "2.0"
diff --git a/primitives/core/Cargo.toml b/primitives/core/Cargo.toml
index d9a220273d..8eab2040ba 100644
--- a/primitives/core/Cargo.toml
+++ b/primitives/core/Cargo.toml
@@ -8,11 +8,11 @@ edition = "2021"
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = [ "derive" ] }
 
 # Substrate
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-trie = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-trie = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-core-primitives = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
diff --git a/primitives/parachain-inherent/Cargo.toml b/primitives/parachain-inherent/Cargo.toml
index e033ff664f..60cf041c11 100644
--- a/primitives/parachain-inherent/Cargo.toml
+++ b/primitives/parachain-inherent/Cargo.toml
@@ -11,15 +11,15 @@ scale-info = { version = "2.1.1", default-features = false, features = ["derive"
 tracing = { version = "0.1.34", optional = true }
 
 # Substrate
-sc-client-api = { git = "https://github.com/paritytech/substrate", optional = true, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", optional = true, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", optional = true, branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", optional = true, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-storage = { git = "https://github.com/paritytech/substrate", optional = true, branch = "master" }
-sp-trie = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", optional = true, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", optional = true, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", optional = true, branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", optional = true, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-storage = { git = "https://github.com/paritytech/substrate", optional = true, branch = "polkadot-v0.9.27" }
+sp-trie = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-primitives-core = { path = "../core", default-features = false }
diff --git a/primitives/timestamp/Cargo.toml b/primitives/timestamp/Cargo.toml
index 3b64f1bbfe..e8d378e368 100644
--- a/primitives/timestamp/Cargo.toml
+++ b/primitives/timestamp/Cargo.toml
@@ -10,9 +10,9 @@ codec = { package = "parity-scale-codec", version = "3.0.0", default-features =
 futures = "0.3.21"
 
 # Substrate
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-primitives-core = { path = "../core", default-features = false }
@@ -20,9 +20,9 @@ cumulus-primitives-core = { path = "../core", default-features = false }
 [dev-dependencies]
 
 # Substrate
-sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-test-client = { path = "../../test/client" }
diff --git a/primitives/utility/Cargo.toml b/primitives/utility/Cargo.toml
index 74cb8a3eb5..71eaf80640 100644
--- a/primitives/utility/Cargo.toml
+++ b/primitives/utility/Cargo.toml
@@ -8,10 +8,10 @@ edition = "2021"
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = [ "derive" ] }
 
 # Substrate
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-trie = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-trie = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-core-primitives = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
diff --git a/test/client/Cargo.toml b/test/client/Cargo.toml
index 490730b751..f7b9493c8d 100644
--- a/test/client/Cargo.toml
+++ b/test/client/Cargo.toml
@@ -8,23 +8,23 @@ edition = "2021"
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = [ "derive" ] }
 
 # Substrate
-sc-service = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-block-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-executor = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-executor-common = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-test-client = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-service = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-block-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-executor = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-executor-common = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-test-client = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", branch = "master" }
diff --git a/test/relay-sproof-builder/Cargo.toml b/test/relay-sproof-builder/Cargo.toml
index 32e12ee25c..3e1669e8b1 100644
--- a/test/relay-sproof-builder/Cargo.toml
+++ b/test/relay-sproof-builder/Cargo.toml
@@ -8,9 +8,9 @@ edition = "2021"
 codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = [ "derive" ] }
 
 # Substrate
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", default-features = false, branch = "master" }
diff --git a/test/runtime/Cargo.toml b/test/runtime/Cargo.toml
index 73c8e59136..bc01832491 100644
--- a/test/runtime/Cargo.toml
+++ b/test/runtime/Cargo.toml
@@ -10,25 +10,25 @@ scale-info = { version = "2.1.1", default-features = false, features = ["derive"
 serde = { version = "1.0.140", optional = true, features = ["derive"] }
 
 # Substrate
-frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
+frame-executive = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-support = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-balances = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-sudo = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-timestamp = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-api = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-block-builder = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-inherents = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-offchain = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-session = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-std = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-transaction-pool = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-version = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
 
 # Cumulus
 cumulus-pallet-parachain-system = { path = "../../pallets/parachain-system", default-features = false }
@@ -36,7 +36,7 @@ cumulus-primitives-core = { path = "../../primitives/core", default-features = f
 cumulus-primitives-timestamp = { path = "../../primitives/timestamp", default-features = false }
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }
+substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [features]
 default = [ "std" ]
diff --git a/test/service/Cargo.toml b/test/service/Cargo.toml
index 27720cbcc9..a02bd43a1d 100644
--- a/test/service/Cargo.toml
+++ b/test/service/Cargo.toml
@@ -22,33 +22,33 @@ tracing = "0.1.25"
 url = "2.2.2"
 
 # Substrate
-frame-system = { git = "https://github.com/paritytech/substrate", branch = "master" }
-frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-basic-authorship = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-executor = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["wasmtime"] }
-sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-rpc = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-service = { git = "https://github.com/paritytech/substrate", branch = "master", features = [ "wasmtime" ] }
-sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-transaction-pool-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-arithmetic = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-io = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "master" }
-sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sp-trie = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-test-client = { git = "https://github.com/paritytech/substrate", branch = "master" }
-sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
+frame-system = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+frame-system-rpc-runtime-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-basic-authorship = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-executor = { git = "https://github.com/paritytech/substrate", features = ["wasmtime"] , branch = "polkadot-v0.9.27" }
+sc-network = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-rpc = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-service = { git = "https://github.com/paritytech/substrate", features = [ "wasmtime" ] , branch = "polkadot-v0.9.27" }
+sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-transaction-pool = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-transaction-pool-api = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-telemetry = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-arithmetic = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-blockchain = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-io = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-runtime = { git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.27" }
+sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sp-trie = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-test-client = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+sc-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 # Polkadot
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", branch = "master" }
@@ -79,8 +79,8 @@ portpicker = "0.1.1"
 polkadot-test-service = { git = "https://github.com/paritytech/polkadot", branch = "master" }
 
 # Substrate dependencies
-sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
-substrate-test-utils = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-cli = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
+substrate-test-utils = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.27" }
 
 [[bench]]
 name = "transaction_throughput"