diff --git a/substrate/Cargo.lock b/substrate/Cargo.lock
index 2c10e9fe0b..3fd2ba8085 100644
--- a/substrate/Cargo.lock
+++ b/substrate/Cargo.lock
@@ -8956,9 +8956,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.68"
+version = "1.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f690853975602e1bfe1ccbf50504d67174e3bcf340f23b5ea9992e0587a52d8"
+checksum = "063bf466a64011ac24040a49009724ee60a57da1b437617ceb32e53ad61bfb19"
 dependencies = [
  "itoa",
  "ryu",
diff --git a/substrate/bin/node/bench/Cargo.toml b/substrate/bin/node/bench/Cargo.toml
index 037a233a4c..0beeb4e339 100644
--- a/substrate/bin/node/bench/Cargo.toml
+++ b/substrate/bin/node/bench/Cargo.toml
@@ -17,7 +17,7 @@ sc-client-api = { version = "4.0.0-dev", path = "../../../client/api/" }
 sp-runtime = { version = "4.0.0-dev", path = "../../../primitives/runtime" }
 sp-state-machine = { version = "0.10.0-dev", path = "../../../primitives/state-machine" }
 serde = "1.0.126"
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 structopt = "0.3"
 derive_more = "0.99.16"
 kvdb = "0.10.0"
diff --git a/substrate/client/chain-spec/Cargo.toml b/substrate/client/chain-spec/Cargo.toml
index d7557e2062..976da45859 100644
--- a/substrate/client/chain-spec/Cargo.toml
+++ b/substrate/client/chain-spec/Cargo.toml
@@ -18,7 +18,7 @@ impl-trait-for-tuples = "0.2.1"
 sc-network = { version = "0.10.0-dev", path = "../network" }
 sp-core = { version = "4.0.0-dev", path = "../../primitives/core" }
 serde = { version = "1.0.126", features = ["derive"] }
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 sp-runtime = { version = "4.0.0-dev", path = "../../primitives/runtime" }
 sc-telemetry = { version = "4.0.0-dev", path = "../telemetry" }
 codec = { package = "parity-scale-codec", version = "2.0.0" }
diff --git a/substrate/client/cli/Cargo.toml b/substrate/client/cli/Cargo.toml
index 2855e63cdc..8667a5e876 100644
--- a/substrate/client/cli/Cargo.toml
+++ b/substrate/client/cli/Cargo.toml
@@ -23,7 +23,7 @@ parity-scale-codec = "2.3.1"
 hex = "0.4.2"
 rand = "0.7.3"
 tiny-bip39 = "0.8.2"
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 sc-keystore = { version = "4.0.0-dev", path = "../keystore" }
 sp-panic-handler = { version = "4.0.0-dev", path = "../../primitives/panic-handler" }
 sc-client-api = { version = "4.0.0-dev", path = "../api" }
diff --git a/substrate/client/consensus/babe/rpc/Cargo.toml b/substrate/client/consensus/babe/rpc/Cargo.toml
index 3a7cf86a80..b47c3a711d 100644
--- a/substrate/client/consensus/babe/rpc/Cargo.toml
+++ b/substrate/client/consensus/babe/rpc/Cargo.toml
@@ -33,7 +33,7 @@ sp-keystore = { version = "0.10.0-dev", path = "../../../../primitives/keystore"
 
 [dev-dependencies]
 sc-consensus = { version = "0.10.0-dev", path = "../../../consensus/common" }
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 sp-keyring = { version = "4.0.0-dev", path = "../../../../primitives/keyring" }
 sc-keystore = { version = "4.0.0-dev", path = "../../../keystore" }
 substrate-test-runtime-client = { version = "2.0.0", path = "../../../../test-utils/runtime/client" }
diff --git a/substrate/client/finality-grandpa/Cargo.toml b/substrate/client/finality-grandpa/Cargo.toml
index 1dd8c2518a..65a0580b9e 100644
--- a/substrate/client/finality-grandpa/Cargo.toml
+++ b/substrate/client/finality-grandpa/Cargo.toml
@@ -35,7 +35,7 @@ sp-keystore = { version = "0.10.0-dev", path = "../../primitives/keystore" }
 sp-api = { version = "4.0.0-dev", path = "../../primitives/api" }
 sc-telemetry = { version = "4.0.0-dev", path = "../telemetry" }
 sc-keystore = { version = "4.0.0-dev", path = "../keystore" }
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 sc-client-api = { version = "4.0.0-dev", path = "../api" }
 sp-blockchain = { version = "4.0.0-dev", path = "../../primitives/blockchain" }
 sc-network = { version = "0.10.0-dev", path = "../network" }
diff --git a/substrate/client/keystore/Cargo.toml b/substrate/client/keystore/Cargo.toml
index 9e2928d41e..9da825faf0 100644
--- a/substrate/client/keystore/Cargo.toml
+++ b/substrate/client/keystore/Cargo.toml
@@ -22,7 +22,7 @@ sp-core = { version = "4.0.0-dev", path = "../../primitives/core" }
 sp-keystore = { version = "0.10.0-dev", path = "../../primitives/keystore" }
 hex = "0.4.0"
 parking_lot = "0.11.1"
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 
 [dev-dependencies]
 tempfile = "3.1.0"
diff --git a/substrate/client/network/Cargo.toml b/substrate/client/network/Cargo.toml
index 13eb408b0b..c4622c0c5d 100644
--- a/substrate/client/network/Cargo.toml
+++ b/substrate/client/network/Cargo.toml
@@ -47,7 +47,7 @@ sc-block-builder = { version = "0.10.0-dev", path = "../block-builder" }
 sc-client-api = { version = "4.0.0-dev", path = "../api" }
 sc-peerset = { version = "4.0.0-dev", path = "../peerset" }
 serde = { version = "1.0.126", features = ["derive"] }
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 smallvec = "1.7.0"
 sp-arithmetic = { version = "4.0.0-dev", path = "../../primitives/arithmetic" }
 sp-blockchain = { version = "4.0.0-dev", path = "../../primitives/blockchain" }
diff --git a/substrate/client/peerset/Cargo.toml b/substrate/client/peerset/Cargo.toml
index 01b75f1094..fba499bce0 100644
--- a/substrate/client/peerset/Cargo.toml
+++ b/substrate/client/peerset/Cargo.toml
@@ -18,7 +18,7 @@ futures = "0.3.9"
 libp2p = { version = "0.39.1", default-features = false }
 sc-utils = { version = "4.0.0-dev", path = "../utils"}
 log = "0.4.8"
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 wasm-timer = "0.2"
 
 [dev-dependencies]
diff --git a/substrate/client/rpc-api/Cargo.toml b/substrate/client/rpc-api/Cargo.toml
index 532a5cf629..a758d29aed 100644
--- a/substrate/client/rpc-api/Cargo.toml
+++ b/substrate/client/rpc-api/Cargo.toml
@@ -28,7 +28,7 @@ sp-version = { version = "4.0.0-dev", path = "../../primitives/version" }
 sp-runtime = { path = "../../primitives/runtime", version = "4.0.0-dev" }
 sc-chain-spec = { path = "../chain-spec", version = "4.0.0-dev" }
 serde = { version = "1.0.126", features = ["derive"] }
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 sc-transaction-pool-api = { version = "4.0.0-dev", path = "../transaction-pool/api" }
 sp-rpc = { version = "4.0.0-dev", path = "../../primitives/rpc" }
 sp-tracing = { version = "4.0.0-dev", path = "../../primitives/tracing" }
diff --git a/substrate/client/rpc-servers/Cargo.toml b/substrate/client/rpc-servers/Cargo.toml
index 3be2380785..f6f08ac581 100644
--- a/substrate/client/rpc-servers/Cargo.toml
+++ b/substrate/client/rpc-servers/Cargo.toml
@@ -18,7 +18,7 @@ jsonrpc-core = "18.0.0"
 pubsub = { package = "jsonrpc-pubsub", version = "18.0.0" }
 log = "0.4.8"
 prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.10.0-dev"}
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 tokio = "1.13"
 http = { package = "jsonrpc-http-server", version = "18.0.0" }
 ipc = { package = "jsonrpc-ipc-server", version = "18.0.0" }
diff --git a/substrate/client/rpc/Cargo.toml b/substrate/client/rpc/Cargo.toml
index d8aecfe9fd..6cf2d69938 100644
--- a/substrate/client/rpc/Cargo.toml
+++ b/substrate/client/rpc/Cargo.toml
@@ -23,7 +23,7 @@ log = "0.4.8"
 sp-core = { version = "4.0.0-dev", path = "../../primitives/core" }
 rpc = { package = "jsonrpc-core", version = "18.0.0" }
 sp-version = { version = "4.0.0-dev", path = "../../primitives/version" }
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 sp-session = { version = "4.0.0-dev", path = "../../primitives/session" }
 sp-offchain = { version = "4.0.0-dev", path = "../../primitives/offchain" }
 sp-runtime = { version = "4.0.0-dev", path = "../../primitives/runtime" }
diff --git a/substrate/client/service/Cargo.toml b/substrate/client/service/Cargo.toml
index a66a4fc676..161863b147 100644
--- a/substrate/client/service/Cargo.toml
+++ b/substrate/client/service/Cargo.toml
@@ -34,7 +34,7 @@ exit-future = "0.2.0"
 pin-project = "1.0.8"
 hash-db = "0.15.2"
 serde = "1.0.126"
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 sc-keystore = { version = "4.0.0-dev", path = "../keystore" }
 sp-runtime = { version = "4.0.0-dev", path = "../../primitives/runtime" }
 sp-trie = { version = "4.0.0-dev", path = "../../primitives/trie" }
diff --git a/substrate/client/sync-state-rpc/Cargo.toml b/substrate/client/sync-state-rpc/Cargo.toml
index 6d8d959546..c609ac42c7 100644
--- a/substrate/client/sync-state-rpc/Cargo.toml
+++ b/substrate/client/sync-state-rpc/Cargo.toml
@@ -23,7 +23,7 @@ sc-consensus-babe = { version = "0.10.0-dev", path = "../consensus/babe" }
 sc-consensus-epochs = { version = "0.10.0-dev", path = "../consensus/epochs" }
 sc-finality-grandpa = { version = "0.10.0-dev", path = "../finality-grandpa" }
 sc-rpc-api = { version = "0.10.0-dev", path = "../rpc-api" }
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 serde = { version = "1.0.126", features = ["derive"] }
 sp-blockchain = { version = "4.0.0-dev", path = "../../primitives/blockchain" }
 sp-runtime = { version = "4.0.0-dev", path = "../../primitives/runtime" }
diff --git a/substrate/client/telemetry/Cargo.toml b/substrate/client/telemetry/Cargo.toml
index 744a0610a0..9165f6f87a 100644
--- a/substrate/client/telemetry/Cargo.toml
+++ b/substrate/client/telemetry/Cargo.toml
@@ -23,6 +23,6 @@ log = "0.4.8"
 pin-project = "1.0.8"
 rand = "0.7.2"
 serde = { version = "1.0.126", features = ["derive"] }
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 chrono = "0.4.19"
 thiserror = "1.0.30"
diff --git a/substrate/frame/merkle-mountain-range/rpc/Cargo.toml b/substrate/frame/merkle-mountain-range/rpc/Cargo.toml
index 881cbb3c8e..d8f861ad8e 100644
--- a/substrate/frame/merkle-mountain-range/rpc/Cargo.toml
+++ b/substrate/frame/merkle-mountain-range/rpc/Cargo.toml
@@ -27,4 +27,4 @@ sp-runtime = { version = "4.0.0-dev", path = "../../../primitives/runtime" }
 pallet-mmr-primitives = { version = "4.0.0-dev", path = "../primitives" }
 
 [dev-dependencies]
-serde_json = "1.0.68"
+serde_json = "1.0.71"
diff --git a/substrate/frame/transaction-payment/Cargo.toml b/substrate/frame/transaction-payment/Cargo.toml
index 1d3066e39f..3b8b85977d 100644
--- a/substrate/frame/transaction-payment/Cargo.toml
+++ b/substrate/frame/transaction-payment/Cargo.toml
@@ -29,7 +29,7 @@ frame-support = { version = "4.0.0-dev", default-features = false, path = "../su
 frame-system = { version = "4.0.0-dev", default-features = false, path = "../system" }
 
 [dev-dependencies]
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 pallet-balances = { version = "4.0.0-dev", path = "../balances" }
 
 [features]
diff --git a/substrate/frame/transaction-payment/asset-tx-payment/Cargo.toml b/substrate/frame/transaction-payment/asset-tx-payment/Cargo.toml
index a381145d66..e4f3b128cf 100644
--- a/substrate/frame/transaction-payment/asset-tx-payment/Cargo.toml
+++ b/substrate/frame/transaction-payment/asset-tx-payment/Cargo.toml
@@ -30,7 +30,7 @@ serde = { version = "1.0.126", optional = true }
 
 [dev-dependencies]
 smallvec = "1.7.0"
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 
 sp-storage = { version = "4.0.0-dev", default-features = false, path = "../../../primitives/storage" }
 
diff --git a/substrate/primitives/rpc/Cargo.toml b/substrate/primitives/rpc/Cargo.toml
index 15f7aa2b3b..2d56cb06fb 100644
--- a/substrate/primitives/rpc/Cargo.toml
+++ b/substrate/primitives/rpc/Cargo.toml
@@ -18,4 +18,4 @@ sp-core = { version = "4.0.0-dev", path = "../core" }
 rustc-hash = "1.1.0"
 
 [dev-dependencies]
-serde_json = "1.0.68"
+serde_json = "1.0.71"
diff --git a/substrate/primitives/runtime/Cargo.toml b/substrate/primitives/runtime/Cargo.toml
index 8e466bf4a1..7966bb2825 100644
--- a/substrate/primitives/runtime/Cargo.toml
+++ b/substrate/primitives/runtime/Cargo.toml
@@ -32,7 +32,7 @@ hash256-std-hasher = { version = "0.15.2", default-features = false }
 either = { version = "1.5", default-features = false }
 
 [dev-dependencies]
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 rand = "0.7.2"
 sp-state-machine = { version = "0.10.0-dev", path = "../state-machine" }
 sp-api = { version = "4.0.0-dev", path = "../api" }
diff --git a/substrate/primitives/serializer/Cargo.toml b/substrate/primitives/serializer/Cargo.toml
index 2b2acb8dbc..359217b9b4 100644
--- a/substrate/primitives/serializer/Cargo.toml
+++ b/substrate/primitives/serializer/Cargo.toml
@@ -15,4 +15,4 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 serde = "1.0.126"
-serde_json = "1.0.68"
+serde_json = "1.0.71"
diff --git a/substrate/test-utils/client/Cargo.toml b/substrate/test-utils/client/Cargo.toml
index 1277863c94..ef481dd3f2 100644
--- a/substrate/test-utils/client/Cargo.toml
+++ b/substrate/test-utils/client/Cargo.toml
@@ -16,7 +16,7 @@ codec = { package = "parity-scale-codec", version = "2.0.0" }
 futures = "0.3.16"
 hex = "0.4"
 serde = "1.0.126"
-serde_json = "1.0.68"
+serde_json = "1.0.71"
 sc-client-api = { version = "4.0.0-dev", path = "../../client/api" }
 sc-client-db = { version = "0.10.0-dev", features = [
     "test-helpers",