diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 31ba6efd82..c9449a693e 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -7667,18 +7667,18 @@ checksum = "f97841a747eef040fcd2e7b3b9a220a7205926e60488e673d9e4926d27772ce5"
 
 [[package]]
 name = "serde"
-version = "1.0.117"
+version = "1.0.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b88fa983de7720629c9387e9f517353ed404164b1e482c970a90c1a4aaf7dc1a"
+checksum = "06c64263859d87aa2eb554587e2d23183398d617427327cf2b3d0ed8c69e4800"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.117"
+version = "1.0.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cbd1ae72adb44aab48f325a02444a5fc079349a8d804c1fc922aed3f7454c74e"
+checksum = "c84d3526699cd55261af4b941e4e725444df67aa4f9e6a3564f18030d12672df"
 dependencies = [
  "proc-macro2 1.0.24",
  "quote 1.0.7",
diff --git a/polkadot/node/service/Cargo.toml b/polkadot/node/service/Cargo.toml
index 74a55445ef..541f4ab391 100644
--- a/polkadot/node/service/Cargo.toml
+++ b/polkadot/node/service/Cargo.toml
@@ -56,7 +56,7 @@ futures = "0.3.8"
 hex-literal = "0.3.1"
 tracing = "0.1.22"
 tracing-futures = "0.2.4"
-serde = { version = "1.0.117", features = ["derive"] }
+serde = { version = "1.0.118", features = ["derive"] }
 
 # Polkadot
 polkadot-node-core-proposer = { path = "../core/proposer" }
diff --git a/polkadot/primitives/Cargo.toml b/polkadot/primitives/Cargo.toml
index 7d00140054..9e079e80a5 100644
--- a/polkadot/primitives/Cargo.toml
+++ b/polkadot/primitives/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-serde = { version = "1.0.117", optional = true, features = ["derive"] }
+serde = { version = "1.0.118", optional = true, features = ["derive"] }
 parity-scale-codec = { version = "1.3.5", 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 }
diff --git a/polkadot/runtime/common/Cargo.toml b/polkadot/runtime/common/Cargo.toml
index 63f8ca9531..78d5da89b2 100644
--- a/polkadot/runtime/common/Cargo.toml
+++ b/polkadot/runtime/common/Cargo.toml
@@ -9,7 +9,7 @@ bitvec = { version = "0.17.4", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "1.3.5", default-features = false, features = ["derive"] }
 log = { version = "0.4.11", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.117", default-features = false }
+serde = { version = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
 
diff --git a/polkadot/runtime/kusama/Cargo.toml b/polkadot/runtime/kusama/Cargo.toml
index 206ea2b68d..01bc5a4029 100644
--- a/polkadot/runtime/kusama/Cargo.toml
+++ b/polkadot/runtime/kusama/Cargo.toml
@@ -10,7 +10,7 @@ bitvec = { version = "0.17.4", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "1.3.5", default-features = false, features = ["derive"] }
 log = { version = "0.4.11", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.117", default-features = false }
+serde = { version = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
 smallvec = "1.5.1"
diff --git a/polkadot/runtime/parachains/Cargo.toml b/polkadot/runtime/parachains/Cargo.toml
index 9e15b98c94..58e84a1241 100644
--- a/polkadot/runtime/parachains/Cargo.toml
+++ b/polkadot/runtime/parachains/Cargo.toml
@@ -9,7 +9,7 @@ bitvec = { version = "0.17.4", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "1.3.5", default-features = false, features = ["derive"] }
 log = "0.4.11"
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.117", features = [ "derive" ], optional = true }
+serde = { version = "1.0.118", features = [ "derive" ], optional = true }
 derive_more = "0.99.11"
 
 sp-api = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
diff --git a/polkadot/runtime/polkadot/Cargo.toml b/polkadot/runtime/polkadot/Cargo.toml
index d0ef5253b8..6226b4aedc 100644
--- a/polkadot/runtime/polkadot/Cargo.toml
+++ b/polkadot/runtime/polkadot/Cargo.toml
@@ -10,7 +10,7 @@ bitvec = { version = "0.17.4", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "1.3.5", default-features = false, features = ["derive"] }
 log = { version = "0.4.11", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.117", default-features = false }
+serde = { version = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
 smallvec = "1.5.1"
diff --git a/polkadot/runtime/rococo/Cargo.toml b/polkadot/runtime/rococo/Cargo.toml
index de27085764..84cc968879 100644
--- a/polkadot/runtime/rococo/Cargo.toml
+++ b/polkadot/runtime/rococo/Cargo.toml
@@ -7,7 +7,7 @@ build = "build.rs"
 
 [dependencies]
 parity-scale-codec = { version = "1.3.5", default-features = false, features = ["derive"] }
-serde = { version = "1.0.117", default-features = false }
+serde = { version = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 smallvec = "1.5.1"
 
diff --git a/polkadot/runtime/test-runtime/Cargo.toml b/polkadot/runtime/test-runtime/Cargo.toml
index 3715c403d3..230cced1ac 100644
--- a/polkadot/runtime/test-runtime/Cargo.toml
+++ b/polkadot/runtime/test-runtime/Cargo.toml
@@ -10,7 +10,7 @@ bitvec = { version = "0.17.4", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "1.3.5", default-features = false, features = ["derive"] }
 log = { version = "0.4.11", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.117", default-features = false }
+serde = { version = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 smallvec = "1.5.1"
 
diff --git a/polkadot/runtime/westend/Cargo.toml b/polkadot/runtime/westend/Cargo.toml
index 23a792d614..563d451b55 100644
--- a/polkadot/runtime/westend/Cargo.toml
+++ b/polkadot/runtime/westend/Cargo.toml
@@ -10,7 +10,7 @@ bitvec = { version = "0.17.4", default-features = false, features = ["alloc"] }
 parity-scale-codec = { version = "1.3.5", default-features = false, features = ["derive"] }
 log = { version = "0.4.11", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.117", default-features = false }
+serde = { version = "1.0.118", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 smallvec = "1.5.1"
 static_assertions = "1.1.0"