diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index d9c00c1d2f9251d8f7392196d7c308913bc09c7a..a389dcfc9e98ed4797a8a53f8375aa5f468963da 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -7815,18 +7815,18 @@ checksum = "f97841a747eef040fcd2e7b3b9a220a7205926e60488e673d9e4926d27772ce5"
 
 [[package]]
 name = "serde"
-version = "1.0.119"
+version = "1.0.120"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9bdd36f49e35b61d49efd8aa7fc068fd295961fd2286d0b2ee9a4c7a14e99cc3"
+checksum = "166b2349061381baf54a58e4b13c89369feb0ef2eaa57198899e2312aac30aab"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.119"
+version = "1.0.120"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "552954ce79a059ddd5fd68c271592374bd15cab2274970380c000118aeffe1cd"
+checksum = "0ca2a8cb5805ce9e3b95435e3765b7b553cecc762d938d409434338386cb5775"
 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 de16ea17cf8787715f79eb3404ef6e4ce69cf2c8..432d954bfc841f91b9977e7de9b74f5320815214 100644
--- a/polkadot/node/service/Cargo.toml
+++ b/polkadot/node/service/Cargo.toml
@@ -57,7 +57,7 @@ futures = "0.3.12"
 hex-literal = "0.3.1"
 tracing = "0.1.22"
 tracing-futures = "0.2.4"
-serde = { version = "1.0.119", features = ["derive"] }
+serde = { version = "1.0.120", features = ["derive"] }
 thiserror = "1.0.23"
 
 # Polkadot
diff --git a/polkadot/primitives/Cargo.toml b/polkadot/primitives/Cargo.toml
index 512c835f1df93ce376a23e345398143703f12f30..de9b4d61e131f0ad59656c397b6ad869e333b0eb 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 = "1.0.119", optional = true, features = ["derive"] }
+serde = { version = "1.0.120", optional = true, features = ["derive"] }
 parity-scale-codec = { version = "1.3.6", 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 f47c9e170b7bc6e021fe61909e51289576f42d8a..9474aa91040c7d9078ce960446efbfe33a63eb09 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 = "1.3.6", default-features = false, features = ["derive"] }
 log = { version = "0.4.13", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.119", default-features = false }
+serde = { version = "1.0.120", 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 e34d483b80584040beb228ae50a74a545086e9e6..b4cafab910f0922e7c3834db642b1b685b1ac416 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 = "1.3.6", default-features = false, features = ["derive"] }
 log = { version = "0.4.13", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.119", default-features = false }
+serde = { version = "1.0.120", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
 smallvec = "1.6.1"
diff --git a/polkadot/runtime/parachains/Cargo.toml b/polkadot/runtime/parachains/Cargo.toml
index e6f901c61ca36f95610a19b9342b003f4ffc0b52..ae56c7b2fca28fedbd73737f6a68981a2f35f36e 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 = "1.3.6", default-features = false, features = ["derive"] }
 log = "0.4.13"
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.119", features = [ "derive" ], optional = true }
+serde = { version = "1.0.120", 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 537377cef196b1c139ec31c2a6e9f120d2329878..a2549af31c2f106ec1eb9d01bc10c31de0938aca 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 = "1.3.6", default-features = false, features = ["derive"] }
 log = { version = "0.4.13", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.119", default-features = false }
+serde = { version = "1.0.120", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 static_assertions = "1.1.0"
 smallvec = "1.6.1"
diff --git a/polkadot/runtime/rococo/Cargo.toml b/polkadot/runtime/rococo/Cargo.toml
index 8849bc8e622f87602f59342cca6aea3e244d9beb..eb3bff596c59fefde6745edc22c75f2921082a3b 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 = "1.3.6", default-features = false, features = ["derive"] }
-serde = { version = "1.0.119", default-features = false }
+serde = { version = "1.0.120", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 smallvec = "1.6.1"
 hex-literal = "0.3.1"
diff --git a/polkadot/runtime/test-runtime/Cargo.toml b/polkadot/runtime/test-runtime/Cargo.toml
index 4b30ed94fb766baae7c1617ee9e567bc853dfc90..70bc250b4697e8d7c827fed83a94e3f7c8c66ea9 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 = "1.3.6", default-features = false, features = ["derive"] }
 log = { version = "0.4.13", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.119", default-features = false }
+serde = { version = "1.0.120", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 smallvec = "1.6.1"
 
diff --git a/polkadot/runtime/westend/Cargo.toml b/polkadot/runtime/westend/Cargo.toml
index b61008c9ca828e1c59fecea989bfa28534d478bf..a2eca897b8bc4b1090f0f316e7810dffcd2520ba 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 = "1.3.6", default-features = false, features = ["derive"] }
 log = { version = "0.4.13", optional = true }
 rustc-hex = { version = "2.1.0", default-features = false }
-serde = { version = "1.0.119", default-features = false }
+serde = { version = "1.0.120", default-features = false }
 serde_derive = { version = "1.0.117", optional = true }
 smallvec = "1.6.1"
 static_assertions = "1.1.0"