diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 7e0b2ae379..b52b4b9e57 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -5956,9 +5956,9 @@ dependencies = [
 
 [[package]]
 name = "parity-scale-codec"
-version = "3.1.0"
+version = "3.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8483b84fb12de1dc23bf95d26030d16cea56391d136db0db37f749508104e3e6"
+checksum = "e8b44461635bbb1a0300f100a841e571e7d919c81c73075ef5d152ffdb521066"
 dependencies = [
  "arrayvec 0.7.2",
  "bitvec",
@@ -5970,9 +5970,9 @@ dependencies = [
 
 [[package]]
 name = "parity-scale-codec-derive"
-version = "3.1.0"
+version = "3.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7259388ceb4c23bc09caef272c9e7a732b3b8f9fbd0b41f0009a91d6548cc1d9"
+checksum = "c45ed1f39709f5a89338fab50e59816b2e8815f5bb58276e7ddf9afd495f73f8"
 dependencies = [
  "proc-macro-crate 1.1.3",
  "proc-macro2",
diff --git a/polkadot/core-primitives/Cargo.toml b/polkadot/core-primitives/Cargo.toml
index 3c5c6c397e..2249b4c2da 100644
--- a/polkadot/core-primitives/Cargo.toml
+++ b/polkadot/core-primitives/Cargo.toml
@@ -9,7 +9,7 @@ sp-core = { git = "https://github.com/paritytech/substrate", branch = "master",
 sp-std = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = [ "derive" ] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = [ "derive" ] }
 parity-util-mem = { version = "0.11.0", default-features = false, optional = true }
 
 [features]
diff --git a/polkadot/erasure-coding/Cargo.toml b/polkadot/erasure-coding/Cargo.toml
index c45e5efa1e..12a72d1ac7 100644
--- a/polkadot/erasure-coding/Cargo.toml
+++ b/polkadot/erasure-coding/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2021"
 polkadot-primitives = { path = "../primitives" }
 polkadot-node-primitives = { package = "polkadot-node-primitives", path = "../node/primitives" }
 novelpoly = { package = "reed-solomon-novelpoly", version = "1.0.0" }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["std", "derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["std", "derive"] }
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 trie = { package = "sp-trie", git = "https://github.com/paritytech/substrate", branch = "master" }
 thiserror = "1.0.30"
diff --git a/polkadot/node/collation-generation/Cargo.toml b/polkadot/node/collation-generation/Cargo.toml
index bb0a4fc4b0..bf43fad903 100644
--- a/polkadot/node/collation-generation/Cargo.toml
+++ b/polkadot/node/collation-generation/Cargo.toml
@@ -15,7 +15,7 @@ polkadot-primitives = { path = "../../primitives" }
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-maybe-compressed-blob  = { git = "https://github.com/paritytech/substrate", branch = "master" }
 thiserror = "1.0.30"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["bit-vec", "derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["bit-vec", "derive"] }
 
 [dev-dependencies]
 polkadot-node-subsystem-test-helpers = { path = "../subsystem-test-helpers" }
diff --git a/polkadot/node/core/approval-voting/Cargo.toml b/polkadot/node/core/approval-voting/Cargo.toml
index c9139c7855..d4d8b46a27 100644
--- a/polkadot/node/core/approval-voting/Cargo.toml
+++ b/polkadot/node/core/approval-voting/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 [dependencies]
 futures = "0.3.21"
 futures-timer = "3.0.2"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["bit-vec", "derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["bit-vec", "derive"] }
 gum = { package = "tracing-gum", path = "../../gum" }
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 lru = "0.7"
diff --git a/polkadot/node/core/av-store/Cargo.toml b/polkadot/node/core/av-store/Cargo.toml
index 0b40b44e7d..b7a1dfe0ff 100644
--- a/polkadot/node/core/av-store/Cargo.toml
+++ b/polkadot/node/core/av-store/Cargo.toml
@@ -12,7 +12,7 @@ thiserror = "1.0.30"
 gum = { package = "tracing-gum", path = "../../gum" }
 bitvec = "1.0.0"
 
-parity-scale-codec = { version = "3.1.0", features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", features = ["derive"] }
 erasure = { package = "polkadot-erasure-coding", path = "../../../erasure-coding" }
 polkadot-subsystem = { package = "polkadot-node-subsystem", path = "../../subsystem" }
 polkadot-node-subsystem-util = { path = "../../subsystem-util" }
diff --git a/polkadot/node/core/candidate-validation/Cargo.toml b/polkadot/node/core/candidate-validation/Cargo.toml
index 7502d12404..e0f9535875 100644
--- a/polkadot/node/core/candidate-validation/Cargo.toml
+++ b/polkadot/node/core/candidate-validation/Cargo.toml
@@ -10,7 +10,7 @@ futures = "0.3.21"
 gum = { package = "tracing-gum", path = "../../gum" }
 
 sp-maybe-compressed-blob = { package = "sp-maybe-compressed-blob", git = "https://github.com/paritytech/substrate", branch = "master" }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["bit-vec", "derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["bit-vec", "derive"] }
 
 polkadot-primitives = { path = "../../../primitives" }
 polkadot-parachain = { path = "../../../parachain" }
diff --git a/polkadot/node/core/chain-api/Cargo.toml b/polkadot/node/core/chain-api/Cargo.toml
index 5fb36aa542..1a7f854a31 100644
--- a/polkadot/node/core/chain-api/Cargo.toml
+++ b/polkadot/node/core/chain-api/Cargo.toml
@@ -17,7 +17,7 @@ sc-consensus-babe = { git = "https://github.com/paritytech/substrate", branch =
 [dev-dependencies]
 futures = { version = "0.3.21", features = ["thread-pool"] }
 maplit = "1.0.2"
-parity-scale-codec = "3.1.0"
+parity-scale-codec = "3.1.2"
 polkadot-node-primitives = { path = "../../primitives" }
 polkadot-node-subsystem-test-helpers = { path = "../../subsystem-test-helpers" }
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
diff --git a/polkadot/node/core/chain-selection/Cargo.toml b/polkadot/node/core/chain-selection/Cargo.toml
index f2f87f3320..9ac9f36222 100644
--- a/polkadot/node/core/chain-selection/Cargo.toml
+++ b/polkadot/node/core/chain-selection/Cargo.toml
@@ -15,7 +15,7 @@ polkadot-node-subsystem = { path = "../../subsystem" }
 polkadot-node-subsystem-util = { path = "../../subsystem-util" }
 kvdb = "0.11.0"
 thiserror = "1.0.30"
-parity-scale-codec = "3.1.0"
+parity-scale-codec = "3.1.2"
 
 [dev-dependencies]
 polkadot-node-subsystem-test-helpers = { path = "../../subsystem-test-helpers" }
diff --git a/polkadot/node/core/dispute-coordinator/Cargo.toml b/polkadot/node/core/dispute-coordinator/Cargo.toml
index 3c6f837ce7..0f8fb764ad 100644
--- a/polkadot/node/core/dispute-coordinator/Cargo.toml
+++ b/polkadot/node/core/dispute-coordinator/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 [dependencies]
 futures = "0.3.21"
 gum = { package = "tracing-gum", path = "../../gum" }
-parity-scale-codec = "3.1.0"
+parity-scale-codec = "3.1.2"
 kvdb = "0.11.0"
 thiserror = "1.0.30"
 lru = "0.7.3"
diff --git a/polkadot/node/core/pvf/Cargo.toml b/polkadot/node/core/pvf/Cargo.toml
index 4f8aadbaaa..358f3443f1 100644
--- a/polkadot/node/core/pvf/Cargo.toml
+++ b/polkadot/node/core/pvf/Cargo.toml
@@ -19,7 +19,7 @@ slotmap = "1.0"
 gum = { package = "tracing-gum", path = "../../gum" }
 pin-project = "1.0.9"
 rand = "0.8.5"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 polkadot-parachain = { path = "../../../parachain" }
 polkadot-core-primitives = { path = "../../../core-primitives" }
 polkadot-node-subsystem-util = { path = "../../subsystem-util"}
diff --git a/polkadot/node/jaeger/Cargo.toml b/polkadot/node/jaeger/Cargo.toml
index 2edc201f04..2a32feb729 100644
--- a/polkadot/node/jaeger/Cargo.toml
+++ b/polkadot/node/jaeger/Cargo.toml
@@ -16,4 +16,4 @@ sc-network = { git = "https://github.com/paritytech/substrate", branch = "master
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 thiserror = "1.0.30"
 log = "0.4.13"
-parity-scale-codec = { version = "3.1.0", default-features = false }
+parity-scale-codec = { version = "3.1.2", default-features = false }
diff --git a/polkadot/node/network/availability-distribution/Cargo.toml b/polkadot/node/network/availability-distribution/Cargo.toml
index f6875b748e..a009cb416a 100644
--- a/polkadot/node/network/availability-distribution/Cargo.toml
+++ b/polkadot/node/network/availability-distribution/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 [dependencies]
 futures = "0.3.21"
 gum = { package = "tracing-gum", path = "../../gum" }
-parity-scale-codec = { version = "3.1.0", features = ["std"] }
+parity-scale-codec = { version = "3.1.2", features = ["std"] }
 polkadot-primitives = { path = "../../../primitives" }
 polkadot-erasure-coding = { path = "../../../erasure-coding" }
 polkadot-subsystem = { package = "polkadot-node-subsystem", path = "../../subsystem" }
diff --git a/polkadot/node/network/availability-recovery/Cargo.toml b/polkadot/node/network/availability-recovery/Cargo.toml
index 8536ef609f..4f948ffef9 100644
--- a/polkadot/node/network/availability-recovery/Cargo.toml
+++ b/polkadot/node/network/availability-recovery/Cargo.toml
@@ -18,7 +18,7 @@ polkadot-node-primitives = { path = "../../primitives" }
 polkadot-subsystem = { package = "polkadot-node-subsystem", path = "../../subsystem" }
 polkadot-node-subsystem-util = { path = "../../subsystem-util" }
 polkadot-node-network-protocol = { path = "../../network/protocol" }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
 
 [dev-dependencies]
diff --git a/polkadot/node/network/bridge/Cargo.toml b/polkadot/node/network/bridge/Cargo.toml
index 346f3464c0..2ab13ae29c 100644
--- a/polkadot/node/network/bridge/Cargo.toml
+++ b/polkadot/node/network/bridge/Cargo.toml
@@ -9,7 +9,7 @@ async-trait = "0.1.52"
 futures = "0.3.21"
 gum = { package = "tracing-gum", path = "../../gum" }
 polkadot-primitives = { path = "../../../primitives" }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
 polkadot-subsystem = { package = "polkadot-node-subsystem", path = "../../subsystem" }
diff --git a/polkadot/node/network/collator-protocol/Cargo.toml b/polkadot/node/network/collator-protocol/Cargo.toml
index a13bc9adb4..6a9146b4e4 100644
--- a/polkadot/node/network/collator-protocol/Cargo.toml
+++ b/polkadot/node/network/collator-protocol/Cargo.toml
@@ -30,7 +30,7 @@ assert_matches = "1.4.0"
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["std"] }
 sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
-parity-scale-codec = { version = "3.1.0", features = ["std"] }
+parity-scale-codec = { version = "3.1.2", features = ["std"] }
 
 polkadot-subsystem-testhelpers = { package = "polkadot-node-subsystem-test-helpers", path = "../../subsystem-test-helpers" }
 polkadot-primitives-test-helpers = { path = "../../../primitives/test-helpers" }
diff --git a/polkadot/node/network/dispute-distribution/Cargo.toml b/polkadot/node/network/dispute-distribution/Cargo.toml
index 65ca08b2e0..fdf372135e 100644
--- a/polkadot/node/network/dispute-distribution/Cargo.toml
+++ b/polkadot/node/network/dispute-distribution/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2021"
 futures = "0.3.21"
 gum = { package = "tracing-gum", path = "../../gum" }
 derive_more = "0.99.17"
-parity-scale-codec = { version = "3.1.0", features = ["std"] }
+parity-scale-codec = { version = "3.1.2", features = ["std"] }
 polkadot-primitives = { path = "../../../primitives" }
 polkadot-erasure-coding = { path = "../../../erasure-coding" }
 polkadot-subsystem = { package = "polkadot-node-subsystem", path = "../../subsystem" }
diff --git a/polkadot/node/network/protocol/Cargo.toml b/polkadot/node/network/protocol/Cargo.toml
index b4481d0d8c..808272f173 100644
--- a/polkadot/node/network/protocol/Cargo.toml
+++ b/polkadot/node/network/protocol/Cargo.toml
@@ -10,7 +10,7 @@ async-trait = "0.1.52"
 polkadot-primitives = { path = "../../../primitives" }
 polkadot-node-primitives = { path = "../../primitives" }
 polkadot-node-jaeger = { path = "../../jaeger" }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-authority-discovery = { git = "https://github.com/paritytech/substrate", branch = "master" }
 strum = { version = "0.24", features = ["derive"] }
diff --git a/polkadot/node/network/statement-distribution/Cargo.toml b/polkadot/node/network/statement-distribution/Cargo.toml
index ee00f5416a..83513950a7 100644
--- a/polkadot/node/network/statement-distribution/Cargo.toml
+++ b/polkadot/node/network/statement-distribution/Cargo.toml
@@ -17,7 +17,7 @@ polkadot-node-subsystem-util = { path = "../../subsystem-util" }
 polkadot-node-network-protocol = { path = "../../network/protocol" }
 arrayvec = "0.5.2"
 indexmap = "1.8.0"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 thiserror = "1.0.30"
 fatality = "0.0.6"
 
diff --git a/polkadot/node/primitives/Cargo.toml b/polkadot/node/primitives/Cargo.toml
index 1490a99600..789bc8522b 100644
--- a/polkadot/node/primitives/Cargo.toml
+++ b/polkadot/node/primitives/Cargo.toml
@@ -9,7 +9,7 @@ description = "Primitives types for the Node-side"
 bounded-vec = "0.5"
 futures = "0.3.21"
 polkadot-primitives = { path = "../../primitives" }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-application-crypto = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-consensus-vrf = { git = "https://github.com/paritytech/substrate", branch = "master" }
diff --git a/polkadot/node/subsystem-util/Cargo.toml b/polkadot/node/subsystem-util/Cargo.toml
index 96bf8366ba..1fbdad44b3 100644
--- a/polkadot/node/subsystem-util/Cargo.toml
+++ b/polkadot/node/subsystem-util/Cargo.toml
@@ -9,7 +9,7 @@ description = "Subsystem traits and message definitions"
 async-trait = "0.1.52"
 futures = "0.3.21"
 itertools = "0.10"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 parking_lot = "0.11.2"
 pin-project = "1.0.9"
 rand = "0.8.5"
diff --git a/polkadot/node/test/client/Cargo.toml b/polkadot/node/test/client/Cargo.toml
index 42d301961d..a194b60c53 100644
--- a/polkadot/node/test/client/Cargo.toml
+++ b/polkadot/node/test/client/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2021"
 
 [dependencies]
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 
 # Polkadot dependencies
 polkadot-test-runtime = { path = "../../../runtime/test-runtime" }
diff --git a/polkadot/node/zombienet-backchannel/Cargo.toml b/polkadot/node/zombienet-backchannel/Cargo.toml
index e1f8813c30..a993d70cc0 100644
--- a/polkadot/node/zombienet-backchannel/Cargo.toml
+++ b/polkadot/node/zombienet-backchannel/Cargo.toml
@@ -14,7 +14,7 @@ url = "2.0.0"
 tokio-tungstenite = "0.17"
 futures-util = "0.3.21"
 lazy_static = "1.4.0"
-parity-scale-codec = { version = "3.1.0", features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", features = ["derive"] }
 reqwest = "0.11"
 thiserror = "1.0.30"
 gum = { package = "tracing-gum", path = "../gum/" }
diff --git a/polkadot/parachain/Cargo.toml b/polkadot/parachain/Cargo.toml
index befadc5c44..4e17a2e0d1 100644
--- a/polkadot/parachain/Cargo.toml
+++ b/polkadot/parachain/Cargo.toml
@@ -9,7 +9,7 @@ edition = "2021"
 # note: special care is taken to avoid inclusion of `sp-io` externals when compiling
 # this crate for WASM. This is critical to avoid forcing all parachain WASM into implementing
 # various unnecessary Substrate-specific endpoints.
-parity-scale-codec = { version = "3.1.0", default-features = false, features = [ "derive" ] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = [ "derive" ] }
 parity-util-mem = { version = "0.11.0", default-features = false, optional = true }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 sp-std = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
diff --git a/polkadot/parachain/test-parachains/Cargo.toml b/polkadot/parachain/test-parachains/Cargo.toml
index 127185d398..b69624b5fe 100644
--- a/polkadot/parachain/test-parachains/Cargo.toml
+++ b/polkadot/parachain/test-parachains/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 
 [dependencies]
 tiny-keccak = "2.0.2"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 
 adder = { package = "test-parachain-adder", path = "adder" }
 halt = { package = "test-parachain-halt", path = "halt" }
diff --git a/polkadot/parachain/test-parachains/adder/Cargo.toml b/polkadot/parachain/test-parachains/adder/Cargo.toml
index edd46cd274..6b523d3e5f 100644
--- a/polkadot/parachain/test-parachains/adder/Cargo.toml
+++ b/polkadot/parachain/test-parachains/adder/Cargo.toml
@@ -8,7 +8,7 @@ build = "build.rs"
 
 [dependencies]
 parachain = { package = "polkadot-parachain", path = "../../", default-features = false, features = [ "wasm-api" ] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 sp-std = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 tiny-keccak = { version = "2.0.2", features = ["keccak"] }
 dlmalloc = { version = "0.2.3", features = [ "global" ] }
diff --git a/polkadot/parachain/test-parachains/adder/collator/Cargo.toml b/polkadot/parachain/test-parachains/adder/collator/Cargo.toml
index 90a177f875..805ffa4d69 100644
--- a/polkadot/parachain/test-parachains/adder/collator/Cargo.toml
+++ b/polkadot/parachain/test-parachains/adder/collator/Cargo.toml
@@ -14,7 +14,7 @@ name = "adder_collator_puppet_worker"
 path = "bin/puppet_worker.rs"
 
 [dependencies]
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 clap = { version = "3.1", features = ["derive"] }
 futures = "0.3.21"
 futures-timer = "3.0.2"
diff --git a/polkadot/parachain/test-parachains/undying/Cargo.toml b/polkadot/parachain/test-parachains/undying/Cargo.toml
index a8374bdca6..98786f5f81 100644
--- a/polkadot/parachain/test-parachains/undying/Cargo.toml
+++ b/polkadot/parachain/test-parachains/undying/Cargo.toml
@@ -8,7 +8,7 @@ build = "build.rs"
 
 [dependencies]
 parachain = { package = "polkadot-parachain", path = "../../", default-features = false, features = [ "wasm-api" ] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 sp-std = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 tiny-keccak = { version = "2.0.2", features = ["keccak"] }
 dlmalloc = { version = "0.2.3", features = [ "global" ] }
diff --git a/polkadot/parachain/test-parachains/undying/collator/Cargo.toml b/polkadot/parachain/test-parachains/undying/collator/Cargo.toml
index 71efbd07bd..01e126ef53 100644
--- a/polkadot/parachain/test-parachains/undying/collator/Cargo.toml
+++ b/polkadot/parachain/test-parachains/undying/collator/Cargo.toml
@@ -14,7 +14,7 @@ name = "undying_collator_puppet_worker"
 path = "bin/puppet_worker.rs"
 
 [dependencies]
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 clap = { version = "3.1", features = ["derive"] }
 futures = "0.3.19"
 futures-timer = "3.0.2"
diff --git a/polkadot/primitives/Cargo.toml b/polkadot/primitives/Cargo.toml
index 6c0eeba1ec..05093b8fcf 100644
--- a/polkadot/primitives/Cargo.toml
+++ b/polkadot/primitives/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 [dependencies]
 serde = { version = "1.0.136", optional = true, features = ["derive"] }
 scale-info = { version = "2.0.0", default-features = false, features = ["bit-vec", "derive"] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["bit-vec", "derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["bit-vec", "derive"] }
 primitives = { package = "sp-core", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 inherents = { package = "sp-inherents", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 application-crypto = { package = "sp-application-crypto", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
diff --git a/polkadot/runtime/common/Cargo.toml b/polkadot/runtime/common/Cargo.toml
index 93f3851c2c..bf506680e1 100644
--- a/polkadot/runtime/common/Cargo.toml
+++ b/polkadot/runtime/common/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 [dependencies]
 impl-trait-for-tuples = "0.2.2"
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 log = { version = "0.4.13", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
diff --git a/polkadot/runtime/common/slot_range_helper/Cargo.toml b/polkadot/runtime/common/slot_range_helper/Cargo.toml
index ac16d54f92..450620cd31 100644
--- a/polkadot/runtime/common/slot_range_helper/Cargo.toml
+++ b/polkadot/runtime/common/slot_range_helper/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 [dependencies]
 paste = "1.0"
 enumn = "0.1.3"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 sp-std = { package = "sp-std", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 
diff --git a/polkadot/runtime/kusama/Cargo.toml b/polkadot/runtime/kusama/Cargo.toml
index fd97e72c96..c6190c7c48 100644
--- a/polkadot/runtime/kusama/Cargo.toml
+++ b/polkadot/runtime/kusama/Cargo.toml
@@ -7,7 +7,7 @@ build = "build.rs"
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
diff --git a/polkadot/runtime/metrics/Cargo.toml b/polkadot/runtime/metrics/Cargo.toml
index 73979ca4e8..75815a5b10 100644
--- a/polkadot/runtime/metrics/Cargo.toml
+++ b/polkadot/runtime/metrics/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 [dependencies]
 sp-std = { package = "sp-std", git = "https://github.com/paritytech/substrate", branch = "master", default-features = false}
 sp-tracing = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
-parity-scale-codec = { version = "3.1.0", default-features = false }
+parity-scale-codec = { version = "3.1.2", default-features = false }
 primitives = { package = "polkadot-primitives", path = "../../primitives", default-features = false }
 
 bs58 = { version = "0.4.0", default-features = false, features = ["alloc"] }
diff --git a/polkadot/runtime/parachains/Cargo.toml b/polkadot/runtime/parachains/Cargo.toml
index 68712f40b3..26e151f27a 100644
--- a/polkadot/runtime/parachains/Cargo.toml
+++ b/polkadot/runtime/parachains/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
diff --git a/polkadot/runtime/polkadot/Cargo.toml b/polkadot/runtime/polkadot/Cargo.toml
index 1bd5523799..4bb1967bd3 100644
--- a/polkadot/runtime/polkadot/Cargo.toml
+++ b/polkadot/runtime/polkadot/Cargo.toml
@@ -7,7 +7,7 @@ build = "build.rs"
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
diff --git a/polkadot/runtime/rococo/Cargo.toml b/polkadot/runtime/rococo/Cargo.toml
index ba955c2bb6..feee13e702 100644
--- a/polkadot/runtime/rococo/Cargo.toml
+++ b/polkadot/runtime/rococo/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 build = "build.rs"
 
 [dependencies]
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.136", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
diff --git a/polkadot/runtime/test-runtime/Cargo.toml b/polkadot/runtime/test-runtime/Cargo.toml
index bc96a2bff1..e0d707bd9a 100644
--- a/polkadot/runtime/test-runtime/Cargo.toml
+++ b/polkadot/runtime/test-runtime/Cargo.toml
@@ -7,7 +7,7 @@ build = "build.rs"
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
diff --git a/polkadot/runtime/westend/Cargo.toml b/polkadot/runtime/westend/Cargo.toml
index bdc5443a45..403ddba948 100644
--- a/polkadot/runtime/westend/Cargo.toml
+++ b/polkadot/runtime/westend/Cargo.toml
@@ -7,7 +7,7 @@ build = "build.rs"
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
diff --git a/polkadot/statement-table/Cargo.toml b/polkadot/statement-table/Cargo.toml
index 4a55da2293..8bdbfab90f 100644
--- a/polkadot/statement-table/Cargo.toml
+++ b/polkadot/statement-table/Cargo.toml
@@ -5,6 +5,6 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2021"
 
 [dependencies]
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 primitives = { package = "polkadot-primitives", path = "../primitives" }
diff --git a/polkadot/xcm/Cargo.toml b/polkadot/xcm/Cargo.toml
index 32fd1a48bc..b10980e26d 100644
--- a/polkadot/xcm/Cargo.toml
+++ b/polkadot/xcm/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 
 [dependencies]
 impl-trait-for-tuples = "0.2.2"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = [ "derive" ] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = [ "derive" ] }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 derivative = {version = "2.2.0", default-features = false, features = [ "use_core" ] }
 log = { version = "0.4.14", default-features = false }
diff --git a/polkadot/xcm/xcm-builder/Cargo.toml b/polkadot/xcm/xcm-builder/Cargo.toml
index 47bd414db4..172a04c2b9 100644
--- a/polkadot/xcm/xcm-builder/Cargo.toml
+++ b/polkadot/xcm/xcm-builder/Cargo.toml
@@ -6,7 +6,7 @@ description = "Tools & types for building with XCM and its executor."
 version = "0.9.18"
 
 [dependencies]
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 scale-info = { version = "2.0.0", default-features = false, features = ["derive"] }
 xcm = { path = "..", default-features = false }
 xcm-executor = { path = "../xcm-executor", default-features = false }
diff --git a/polkadot/xcm/xcm-executor/Cargo.toml b/polkadot/xcm/xcm-executor/Cargo.toml
index 007a7e1aa9..de92257f69 100644
--- a/polkadot/xcm/xcm-executor/Cargo.toml
+++ b/polkadot/xcm/xcm-executor/Cargo.toml
@@ -7,7 +7,7 @@ version = "0.9.18"
 
 [dependencies]
 impl-trait-for-tuples = "0.2.2"
-parity-scale-codec = { version = "3.1.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.1.2", default-features = false, features = ["derive"] }
 xcm = { path = "..", default-features = false }
 sp-std = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 sp-io = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }