diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 9e4eea9b93..9536f83720 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -6612,9 +6612,9 @@ dependencies = [
 
 [[package]]
 name = "parity-scale-codec"
-version = "3.4.0"
+version = "3.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "637935964ff85a605d114591d4d2c13c5d1ba2806dae97cea6bf180238a749ac"
+checksum = "2287753623c76f953acd29d15d8100bcab84d29db78fb6f352adb3c53e83b967"
 dependencies = [
  "arrayvec 0.7.2",
  "bitvec",
@@ -6627,9 +6627,9 @@ dependencies = [
 
 [[package]]
 name = "parity-scale-codec-derive"
-version = "3.1.4"
+version = "3.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86b26a931f824dd4eca30b3e43bb4f31cd5f0d3a403c5f5ff27106b805bfde7b"
+checksum = "2b6937b5e67bfba3351b87b040d48352a2fcb6ad72f81855412ce97b45c8f110"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -8718,9 +8718,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.56"
+version = "1.0.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
+checksum = "dec2b086b7a862cf4de201096214fa870344cf922b2b30c167badb3af3195406"
 dependencies = [
  "unicode-ident",
 ]
@@ -10978,18 +10978,18 @@ checksum = "f97841a747eef040fcd2e7b3b9a220a7205926e60488e673d9e4926d27772ce5"
 
 [[package]]
 name = "serde"
-version = "1.0.163"
+version = "1.0.164"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2113ab51b87a539ae008b5c6c02dc020ffa39afd2d83cffcb3f4eb2722cebec2"
+checksum = "9e8c8cf938e98f769bc164923b06dce91cea1751522f46f8466461af04c9027d"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.163"
+version = "1.0.164"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c805777e3930c8883389c602315a24224bcc738b63905ef87cd1420353ea93e"
+checksum = "d9735b638ccc51c28bf6914d90a2e9725b377144fc612c49a611fddd1b631d68"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/polkadot/core-primitives/Cargo.toml b/polkadot/core-primitives/Cargo.toml
index 56dca0535e..7412c2b6e7 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 = "2.5.0", default-features = false, features = ["derive"] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = [ "derive" ] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = [ "derive" ] }
 
 [features]
 default = [ "std" ]
diff --git a/polkadot/erasure-coding/Cargo.toml b/polkadot/erasure-coding/Cargo.toml
index d7a9236b93..44aa86f881 100644
--- a/polkadot/erasure-coding/Cargo.toml
+++ b/polkadot/erasure-coding/Cargo.toml
@@ -8,7 +8,7 @@ edition.workspace = true
 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 = "3.4.0", default-features = false, features = ["std", "derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["std", "derive"] }
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-trie = { git = "https://github.com/paritytech/substrate", branch = "master" }
 thiserror = "1.0.31"
diff --git a/polkadot/node/collation-generation/Cargo.toml b/polkadot/node/collation-generation/Cargo.toml
index 68410c2cec..a7badc877d 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 = "1.0.31"
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["bit-vec", "derive"] }
+parity-scale-codec = { version = "3.6.1", 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 e35a3610b8..0cb12b501a 100644
--- a/polkadot/node/core/approval-voting/Cargo.toml
+++ b/polkadot/node/core/approval-voting/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 [dependencies]
 futures = "0.3.21"
 futures-timer = "3.0.2"
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["bit-vec", "derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["bit-vec", "derive"] }
 gum = { package = "tracing-gum", path = "../../gum" }
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 lru = "0.9"
diff --git a/polkadot/node/core/av-store/Cargo.toml b/polkadot/node/core/av-store/Cargo.toml
index 4f47ac1453..37404c864d 100644
--- a/polkadot/node/core/av-store/Cargo.toml
+++ b/polkadot/node/core/av-store/Cargo.toml
@@ -12,7 +12,7 @@ thiserror = "1.0.31"
 gum = { package = "tracing-gum", path = "../../gum" }
 bitvec = "1.0.0"
 
-parity-scale-codec = { version = "3.4.0", features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", features = ["derive"] }
 erasure = { package = "polkadot-erasure-coding", path = "../../../erasure-coding" }
 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 18826f7e23..515aabbb3b 100644
--- a/polkadot/node/core/candidate-validation/Cargo.toml
+++ b/polkadot/node/core/candidate-validation/Cargo.toml
@@ -11,7 +11,7 @@ futures-timer = "3.0.2"
 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 = "3.4.0", default-features = false, features = ["bit-vec", "derive"] }
+parity-scale-codec = { version = "3.6.1", 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 5051e96c63..8400a2a5bf 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 = "3.4.0"
+parity-scale-codec = "3.6.1"
 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 750b0b5976..b4104bc6f1 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 = "0.13.0"
 thiserror = "1.0.31"
-parity-scale-codec = "3.4.0"
+parity-scale-codec = "3.6.1"
 
 [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 c6f5b6d2f3..b26e3cc0cf 100644
--- a/polkadot/node/core/dispute-coordinator/Cargo.toml
+++ b/polkadot/node/core/dispute-coordinator/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 [dependencies]
 futures = "0.3.21"
 gum = { package = "tracing-gum", path = "../../gum" }
-parity-scale-codec = "3.4.0"
+parity-scale-codec = "3.6.1"
 kvdb = "0.13.0"
 thiserror = "1.0.31"
 lru = "0.9.0"
diff --git a/polkadot/node/core/pvf/Cargo.toml b/polkadot/node/core/pvf/Cargo.toml
index d00c13fda2..396f8b7ce0 100644
--- a/polkadot/node/core/pvf/Cargo.toml
+++ b/polkadot/node/core/pvf/Cargo.toml
@@ -20,7 +20,7 @@ slotmap = "1.0"
 tempfile = "3.3.0"
 tokio = { version = "1.24.2", features = ["fs", "process"] }
 
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 
 polkadot-parachain = { path = "../../../parachain" }
 polkadot-core-primitives = { path = "../../../core-primitives" }
diff --git a/polkadot/node/core/pvf/common/Cargo.toml b/polkadot/node/core/pvf/common/Cargo.toml
index f896da4909..5f5a3a461c 100644
--- a/polkadot/node/core/pvf/common/Cargo.toml
+++ b/polkadot/node/core/pvf/common/Cargo.toml
@@ -11,7 +11,7 @@ gum = { package = "tracing-gum", path = "../../../gum" }
 libc = "0.2.139"
 tokio = { version = "1.24.2", features = ["fs", "process", "io-util"] }
 
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 
 polkadot-parachain = { path = "../../../../parachain" }
 polkadot-primitives = { path = "../../../../primitives" }
diff --git a/polkadot/node/core/pvf/execute-worker/Cargo.toml b/polkadot/node/core/pvf/execute-worker/Cargo.toml
index dcfb2908ef..167e8b4311 100644
--- a/polkadot/node/core/pvf/execute-worker/Cargo.toml
+++ b/polkadot/node/core/pvf/execute-worker/Cargo.toml
@@ -12,7 +12,7 @@ rayon = "1.5.1"
 tikv-jemalloc-ctl = { version = "0.5.0", optional = true }
 tokio = { version = "1.24.2", features = ["fs", "process"] }
 
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 
 polkadot-node-core-pvf-common = { path = "../common" }
 polkadot-parachain = { path = "../../../../parachain" }
diff --git a/polkadot/node/core/pvf/prepare-worker/Cargo.toml b/polkadot/node/core/pvf/prepare-worker/Cargo.toml
index 07386de359..3bd1fd43b6 100644
--- a/polkadot/node/core/pvf/prepare-worker/Cargo.toml
+++ b/polkadot/node/core/pvf/prepare-worker/Cargo.toml
@@ -12,7 +12,7 @@ rayon = "1.5.1"
 tikv-jemalloc-ctl = { version = "0.5.0", optional = true }
 tokio = { version = "1.24.2", features = ["fs", "process"] }
 
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 
 polkadot-node-core-pvf-common = { path = "../common" }
 polkadot-parachain = { path = "../../../../parachain" }
diff --git a/polkadot/node/jaeger/Cargo.toml b/polkadot/node/jaeger/Cargo.toml
index fccdaff79a..8131d40766 100644
--- a/polkadot/node/jaeger/Cargo.toml
+++ b/polkadot/node/jaeger/Cargo.toml
@@ -16,4 +16,4 @@ sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 thiserror = "1.0.31"
 tokio = "1.24.2"
 log = "0.4.17"
-parity-scale-codec = { version = "3.4.0", default-features = false }
+parity-scale-codec = { version = "3.6.1", default-features = false }
diff --git a/polkadot/node/metrics/Cargo.toml b/polkadot/node/metrics/Cargo.toml
index ced0fbb315..7365d7593d 100644
--- a/polkadot/node/metrics/Cargo.toml
+++ b/polkadot/node/metrics/Cargo.toml
@@ -18,7 +18,7 @@ sc-cli = { git = "https://github.com/paritytech/substrate", branch = "master" }
 
 substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-tracing = { git = "https://github.com/paritytech/substrate", branch = "master" }
-codec = { package = "parity-scale-codec", version = "3.4.0" }
+codec = { package = "parity-scale-codec", version = "3.6.1" }
 primitives = { package = "polkadot-primitives", path = "../../primitives/" }
 bs58 = { version = "0.4.0", features = ["alloc"] }
 log = "0.4.17"
diff --git a/polkadot/node/network/availability-distribution/Cargo.toml b/polkadot/node/network/availability-distribution/Cargo.toml
index 3cb5fdbef9..2655085989 100644
--- a/polkadot/node/network/availability-distribution/Cargo.toml
+++ b/polkadot/node/network/availability-distribution/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 [dependencies]
 futures = "0.3.21"
 gum = { package = "tracing-gum", path = "../../gum" }
-parity-scale-codec = { version = "3.4.0", features = ["std"] }
+parity-scale-codec = { version = "3.6.1", features = ["std"] }
 polkadot-primitives = { path = "../../../primitives" }
 polkadot-erasure-coding = { path = "../../../erasure-coding" }
 polkadot-node-network-protocol = { path = "../../network/protocol" }
diff --git a/polkadot/node/network/availability-recovery/Cargo.toml b/polkadot/node/network/availability-recovery/Cargo.toml
index 9107fec17d..1a2bc1850c 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-node-subsystem = {path = "../../subsystem" }
 polkadot-node-subsystem-util = { path = "../../subsystem-util" }
 polkadot-node-network-protocol = { path = "../../network/protocol" }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 bba32588b2..d45900f06d 100644
--- a/polkadot/node/network/bridge/Cargo.toml
+++ b/polkadot/node/network/bridge/Cargo.toml
@@ -10,7 +10,7 @@ async-trait = "0.1.57"
 futures = "0.3.21"
 gum = { package = "tracing-gum", path = "../../gum" }
 polkadot-primitives = { path = "../../../primitives" }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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-node-metrics = { path = "../../metrics"}
diff --git a/polkadot/node/network/collator-protocol/Cargo.toml b/polkadot/node/network/collator-protocol/Cargo.toml
index 7eea0a0972..25bb4fdb82 100644
--- a/polkadot/node/network/collator-protocol/Cargo.toml
+++ b/polkadot/node/network/collator-protocol/Cargo.toml
@@ -31,7 +31,7 @@ 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 = "3.4.0", features = ["std"] }
+parity-scale-codec = { version = "3.6.1", features = ["std"] }
 
 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 b344c326a2..e88c61f183 100644
--- a/polkadot/node/network/dispute-distribution/Cargo.toml
+++ b/polkadot/node/network/dispute-distribution/Cargo.toml
@@ -9,7 +9,7 @@ futures = "0.3.21"
 futures-timer = "3.0.2"
 gum = { package = "tracing-gum", path = "../../gum" }
 derive_more = "0.99.17"
-parity-scale-codec = { version = "3.4.0", features = ["std"] }
+parity-scale-codec = { version = "3.6.1", features = ["std"] }
 polkadot-primitives = { path = "../../../primitives" }
 polkadot-erasure-coding = { path = "../../../erasure-coding" }
 polkadot-node-subsystem = {path = "../../subsystem" }
diff --git a/polkadot/node/network/protocol/Cargo.toml b/polkadot/node/network/protocol/Cargo.toml
index 12c06f838b..f1a4810812 100644
--- a/polkadot/node/network/protocol/Cargo.toml
+++ b/polkadot/node/network/protocol/Cargo.toml
@@ -12,7 +12,7 @@ hex = "0.4.3"
 polkadot-primitives = { path = "../../../primitives" }
 polkadot-node-primitives = { path = "../../primitives" }
 polkadot-node-jaeger = { path = "../../jaeger" }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 6cf81ee37b..c338b0276e 100644
--- a/polkadot/node/network/statement-distribution/Cargo.toml
+++ b/polkadot/node/network/statement-distribution/Cargo.toml
@@ -18,7 +18,7 @@ polkadot-node-subsystem-util = { path = "../../subsystem-util" }
 polkadot-node-network-protocol = { path = "../../network/protocol" }
 arrayvec = "0.5.2"
 indexmap = "1.9.1"
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 thiserror = "1.0.31"
 fatality = "0.0.6"
 
diff --git a/polkadot/node/primitives/Cargo.toml b/polkadot/node/primitives/Cargo.toml
index f965018c07..1bf9c81b60 100644
--- a/polkadot/node/primitives/Cargo.toml
+++ b/polkadot/node/primitives/Cargo.toml
@@ -9,7 +9,7 @@ edition.workspace = true
 bounded-vec = "0.7"
 futures = "0.3.21"
 polkadot-primitives = { path = "../../primitives" }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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-babe = { 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 cf80b34aee..ad100b798b 100644
--- a/polkadot/node/subsystem-util/Cargo.toml
+++ b/polkadot/node/subsystem-util/Cargo.toml
@@ -10,7 +10,7 @@ async-trait = "0.1.57"
 futures = "0.3.21"
 futures-channel = "0.3.23"
 itertools = "0.10"
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 950662a8c7..7f61ed2408 100644
--- a/polkadot/node/test/client/Cargo.toml
+++ b/polkadot/node/test/client/Cargo.toml
@@ -5,7 +5,7 @@ authors.workspace = true
 edition.workspace = true
 
 [dependencies]
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 cd48ed4601..f0959c4b43 100644
--- a/polkadot/node/zombienet-backchannel/Cargo.toml
+++ b/polkadot/node/zombienet-backchannel/Cargo.toml
@@ -14,7 +14,7 @@ url = "2.3.1"
 tokio-tungstenite = "0.17"
 futures-util = "0.3.23"
 lazy_static = "1.4.0"
-parity-scale-codec = { version = "3.4.0", features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", features = ["derive"] }
 reqwest = "0.11"
 thiserror = "1.0.31"
 gum = { package = "tracing-gum", path = "../gum/" }
diff --git a/polkadot/parachain/Cargo.toml b/polkadot/parachain/Cargo.toml
index a88717f0d9..70eafb3b8b 100644
--- a/polkadot/parachain/Cargo.toml
+++ b/polkadot/parachain/Cargo.toml
@@ -9,7 +9,7 @@ version.workspace = true
 # 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 = "3.4.0", default-features = false, features = [ "derive" ] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = [ "derive" ] }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive", "serde"] }
 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, features = ["serde"] }
diff --git a/polkadot/parachain/test-parachains/Cargo.toml b/polkadot/parachain/test-parachains/Cargo.toml
index 3065d682e9..40aaae5a6e 100644
--- a/polkadot/parachain/test-parachains/Cargo.toml
+++ b/polkadot/parachain/test-parachains/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 
 [dependencies]
 tiny-keccak = { version = "2.0.2", features = ["keccak"] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 fc48e05613..64123d3125 100644
--- a/polkadot/parachain/test-parachains/adder/Cargo.toml
+++ b/polkadot/parachain/test-parachains/adder/Cargo.toml
@@ -8,7 +8,7 @@ authors.workspace = true
 
 [dependencies]
 parachain = { package = "polkadot-parachain", path = "../../", default-features = false, features = [ "wasm-api" ] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 = "0.2.4", features = [ "global" ] }
diff --git a/polkadot/parachain/test-parachains/adder/collator/Cargo.toml b/polkadot/parachain/test-parachains/adder/collator/Cargo.toml
index 7fe4aefc68..29a10069e3 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 = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 clap = { version = "4.0.9", 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 848e48ec62..e2a8448ebf 100644
--- a/polkadot/parachain/test-parachains/undying/Cargo.toml
+++ b/polkadot/parachain/test-parachains/undying/Cargo.toml
@@ -8,7 +8,7 @@ edition.workspace = true
 
 [dependencies]
 parachain = { package = "polkadot-parachain", path = "../../", default-features = false, features = [ "wasm-api" ] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 = "0.2.4", features = [ "global" ] }
diff --git a/polkadot/parachain/test-parachains/undying/collator/Cargo.toml b/polkadot/parachain/test-parachains/undying/collator/Cargo.toml
index 2b9d80401f..f63757a209 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 = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 clap = { version = "4.0.9", features = ["derive"] }
 futures = "0.3.19"
 futures-timer = "3.0.2"
diff --git a/polkadot/primitives/Cargo.toml b/polkadot/primitives/Cargo.toml
index ae79adb8dc..ae2bf0573c 100644
--- a/polkadot/primitives/Cargo.toml
+++ b/polkadot/primitives/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
 hex-literal = "0.4.1"
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["bit-vec", "derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["bit-vec", "derive"] }
 scale-info = { version = "2.5.0", default-features = false, features = ["bit-vec", "derive", "serde"] }
 serde = { version = "1.0.163", default-features = false, features = ["derive", "alloc"] }
 
diff --git a/polkadot/runtime/common/Cargo.toml b/polkadot/runtime/common/Cargo.toml
index 571711cadd..b671a5026f 100644
--- a/polkadot/runtime/common/Cargo.toml
+++ b/polkadot/runtime/common/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 [dependencies]
 impl-trait-for-tuples = "0.2.2"
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 log = { version = "0.4.17", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
 scale-info = { version = "2.5.0", 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 e9af09a9a5..3012b64cbd 100644
--- a/polkadot/runtime/common/slot_range_helper/Cargo.toml
+++ b/polkadot/runtime/common/slot_range_helper/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 [dependencies]
 paste = "1.0"
 enumn = "0.1.8"
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 75aebdc703..43faa286ea 100644
--- a/polkadot/runtime/kusama/Cargo.toml
+++ b/polkadot/runtime/kusama/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.17", 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 bd67363518..ebabb6a832 100644
--- a/polkadot/runtime/metrics/Cargo.toml
+++ b/polkadot/runtime/metrics/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 [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 = "3.4.0", default-features = false }
+parity-scale-codec = { version = "3.6.1", default-features = false }
 primitives = { package = "polkadot-primitives", path = "../../primitives", default-features = false }
 frame-benchmarking = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false, optional = true }
 
diff --git a/polkadot/runtime/parachains/Cargo.toml b/polkadot/runtime/parachains/Cargo.toml
index 5c3aae86b3..240eb48d68 100644
--- a/polkadot/runtime/parachains/Cargo.toml
+++ b/polkadot/runtime/parachains/Cargo.toml
@@ -6,7 +6,7 @@ edition.workspace = true
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive", "max-encoded-len"] }
 log = { version = "0.4.17", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
diff --git a/polkadot/runtime/polkadot/Cargo.toml b/polkadot/runtime/polkadot/Cargo.toml
index e287ab3646..929ee9364d 100644
--- a/polkadot/runtime/polkadot/Cargo.toml
+++ b/polkadot/runtime/polkadot/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.17", 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 3b39756e3b..b991e2793a 100644
--- a/polkadot/runtime/rococo/Cargo.toml
+++ b/polkadot/runtime/rococo/Cargo.toml
@@ -6,7 +6,7 @@ authors.workspace = true
 edition.workspace = true
 
 [dependencies]
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.17", default-features = false }
 serde = { version = "1.0.163", default-features = false }
diff --git a/polkadot/runtime/test-runtime/Cargo.toml b/polkadot/runtime/test-runtime/Cargo.toml
index 73bd3ab368..1de4d34fd0 100644
--- a/polkadot/runtime/test-runtime/Cargo.toml
+++ b/polkadot/runtime/test-runtime/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 log = { version = "0.4.17", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
diff --git a/polkadot/runtime/westend/Cargo.toml b/polkadot/runtime/westend/Cargo.toml
index bcc406a7c2..da47ca0e4b 100644
--- a/polkadot/runtime/westend/Cargo.toml
+++ b/polkadot/runtime/westend/Cargo.toml
@@ -7,7 +7,7 @@ edition.workspace = true
 
 [dependencies]
 bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive", "max-encoded-len"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive", "max-encoded-len"] }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.17", 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 8ac120c237..04a309685b 100644
--- a/polkadot/statement-table/Cargo.toml
+++ b/polkadot/statement-table/Cargo.toml
@@ -5,6 +5,6 @@ authors.workspace = true
 edition.workspace = true
 
 [dependencies]
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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/utils/staking-miner/Cargo.toml b/polkadot/utils/staking-miner/Cargo.toml
index 1f2d0c1c8a..903cdf1235 100644
--- a/polkadot/utils/staking-miner/Cargo.toml
+++ b/polkadot/utils/staking-miner/Cargo.toml
@@ -9,7 +9,7 @@ authors.workspace = true
 edition.workspace = true
 
 [dependencies]
-codec = { package = "parity-scale-codec", version = "3.4.0" }
+codec = { package = "parity-scale-codec", version = "3.6.1" }
 clap = { version = "4.0.9", features = ["derive", "env"] }
 tracing-subscriber = { version = "0.3.11", features = ["env-filter"] }
 jsonrpsee = { version = "0.16.2", features = ["ws-client", "macros"] }
diff --git a/polkadot/xcm/Cargo.toml b/polkadot/xcm/Cargo.toml
index 1f51d17650..ca407dc908 100644
--- a/polkadot/xcm/Cargo.toml
+++ b/polkadot/xcm/Cargo.toml
@@ -10,7 +10,7 @@ bounded-collections = { version = "0.1.8", default-features = false, features =
 derivative = { version = "2.2.0", default-features = false, features = [ "use_core" ] }
 impl-trait-for-tuples = "0.2.2"
 log = { version = "0.4.17", default-features = false }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = [ "derive", "max-encoded-len" ] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = [ "derive", "max-encoded-len" ] }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive", "serde"] }
 sp-weights = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false, features = ["serde"] }
 serde = { version = "1.0.163", default-features = false, features = ["alloc", "derive"] }
diff --git a/polkadot/xcm/pallet-xcm-benchmarks/Cargo.toml b/polkadot/xcm/pallet-xcm-benchmarks/Cargo.toml
index 34a5a8fa9c..a74c8baac4 100644
--- a/polkadot/xcm/pallet-xcm-benchmarks/Cargo.toml
+++ b/polkadot/xcm/pallet-xcm-benchmarks/Cargo.toml
@@ -8,7 +8,7 @@ version.workspace = true
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-codec = { package = "parity-scale-codec", version = "3.4.0", default-features = false }
+codec = { package = "parity-scale-codec", version = "3.6.1", default-features = false }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
 frame-support = { default-features = false, branch = "master", git = "https://github.com/paritytech/substrate" }
 frame-system = { default-features = false, branch = "master", git = "https://github.com/paritytech/substrate" }
diff --git a/polkadot/xcm/pallet-xcm/Cargo.toml b/polkadot/xcm/pallet-xcm/Cargo.toml
index e202ef1581..20bd512686 100644
--- a/polkadot/xcm/pallet-xcm/Cargo.toml
+++ b/polkadot/xcm/pallet-xcm/Cargo.toml
@@ -7,7 +7,7 @@ version.workspace = true
 
 [dependencies]
 bounded-collections = { version = "0.1.8", default-features = false }
-codec = { package = "parity-scale-codec", version = "3.4.0", default-features = false, features = ["derive"] }
+codec = { package = "parity-scale-codec", version = "3.6.1", default-features = false, features = ["derive"] }
 scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.163", optional = true, features = ["derive"] }
 log = { version = "0.4.17", default-features = false }
diff --git a/polkadot/xcm/xcm-builder/Cargo.toml b/polkadot/xcm/xcm-builder/Cargo.toml
index 465d338fd0..7dc7a7fc0a 100644
--- a/polkadot/xcm/xcm-builder/Cargo.toml
+++ b/polkadot/xcm/xcm-builder/Cargo.toml
@@ -7,7 +7,7 @@ version.workspace = true
 
 [dependencies]
 impl-trait-for-tuples = "0.2.1"
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
 scale-info = { version = "2.5.0", 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 f91626eec3..41463bbfbd 100644
--- a/polkadot/xcm/xcm-executor/Cargo.toml
+++ b/polkadot/xcm/xcm-executor/Cargo.toml
@@ -8,7 +8,7 @@ version.workspace = true
 [dependencies]
 impl-trait-for-tuples = "0.2.2"
 environmental = { version = "1.1.4", default-features = false }
-parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", 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 }
diff --git a/polkadot/xcm/xcm-simulator/Cargo.toml b/polkadot/xcm/xcm-simulator/Cargo.toml
index 5a45896591..bb23b8b092 100644
--- a/polkadot/xcm/xcm-simulator/Cargo.toml
+++ b/polkadot/xcm/xcm-simulator/Cargo.toml
@@ -6,7 +6,7 @@ authors.workspace = true
 edition.workspace = true
 
 [dependencies]
-codec = { package = "parity-scale-codec", version = "3.4.0" }
+codec = { package = "parity-scale-codec", version = "3.6.1" }
 paste = "1.0.7"
 
 frame-support = { git = "https://github.com/paritytech/substrate", branch = "master" }
diff --git a/polkadot/xcm/xcm-simulator/example/Cargo.toml b/polkadot/xcm/xcm-simulator/example/Cargo.toml
index 47b7c82243..0bf0654cc4 100644
--- a/polkadot/xcm/xcm-simulator/example/Cargo.toml
+++ b/polkadot/xcm/xcm-simulator/example/Cargo.toml
@@ -6,7 +6,7 @@ edition.workspace = true
 version.workspace = true
 
 [dependencies]
-codec = { package = "parity-scale-codec", version = "3.4.0" }
+codec = { package = "parity-scale-codec", version = "3.6.1" }
 scale-info = { version = "2.5.0", features = ["derive"] }
 log = { version = "0.4.14", default-features = false }
 
diff --git a/polkadot/xcm/xcm-simulator/fuzzer/Cargo.toml b/polkadot/xcm/xcm-simulator/fuzzer/Cargo.toml
index f8cdfa9424..1c36a1595e 100644
--- a/polkadot/xcm/xcm-simulator/fuzzer/Cargo.toml
+++ b/polkadot/xcm/xcm-simulator/fuzzer/Cargo.toml
@@ -6,7 +6,7 @@ authors.workspace = true
 edition.workspace = true
 
 [dependencies]
-codec = { package = "parity-scale-codec", version = "3.4.0" }
+codec = { package = "parity-scale-codec", version = "3.6.1" }
 honggfuzz = "0.5.55"
 arbitrary = "1.2.0"
 scale-info = { version = "2.5.0", features = ["derive"] }