diff --git a/Cargo.lock b/Cargo.lock
index 74678861fcf01..03053b0983f8f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8141,9 +8141,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.59"
+version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6aeca18b86b413c660b781aa319e4e2648a3e6f9eadc9b47e9038e6fe9f3451b"
+checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/client/chain-spec/derive/Cargo.toml b/client/chain-spec/derive/Cargo.toml
index 537f8aee6ab60..e4a1dd3889a94 100644
--- a/client/chain-spec/derive/Cargo.toml
+++ b/client/chain-spec/derive/Cargo.toml
@@ -16,6 +16,6 @@ proc-macro = true
 
 [dependencies]
 proc-macro-crate = "1.1.3"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = "2.0.16"
diff --git a/client/tracing/proc-macro/Cargo.toml b/client/tracing/proc-macro/Cargo.toml
index 4ae836e608367..9c03203575901 100644
--- a/client/tracing/proc-macro/Cargo.toml
+++ b/client/tracing/proc-macro/Cargo.toml
@@ -16,6 +16,6 @@ proc-macro = true
 
 [dependencies]
 proc-macro-crate = "1.1.3"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = { version = "1.0.28", features = ["proc-macro"] }
 syn = { version = "2.0.16", features = ["proc-macro", "full", "extra-traits", "parsing"] }
diff --git a/frame/contracts/proc-macro/Cargo.toml b/frame/contracts/proc-macro/Cargo.toml
index 8a63875f2a980..c7a70e5a37643 100644
--- a/frame/contracts/proc-macro/Cargo.toml
+++ b/frame/contracts/proc-macro/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full"] }
 
diff --git a/frame/election-provider-support/solution-type/Cargo.toml b/frame/election-provider-support/solution-type/Cargo.toml
index af27f912c9c03..fec63243e5f98 100644
--- a/frame/election-provider-support/solution-type/Cargo.toml
+++ b/frame/election-provider-support/solution-type/Cargo.toml
@@ -17,7 +17,7 @@ proc-macro = true
 [dependencies]
 syn = { version = "2.0.16", features = ["full", "visit"] }
 quote = "1.0.28"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 proc-macro-crate = "1.1.3"
 
 [dev-dependencies]
diff --git a/frame/staking/reward-curve/Cargo.toml b/frame/staking/reward-curve/Cargo.toml
index b98ab8caef311..0d5086a3c0386 100644
--- a/frame/staking/reward-curve/Cargo.toml
+++ b/frame/staking/reward-curve/Cargo.toml
@@ -16,7 +16,7 @@ proc-macro = true
 
 [dependencies]
 proc-macro-crate = "1.1.3"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full", "visit"] }
 
diff --git a/frame/support/procedural/Cargo.toml b/frame/support/procedural/Cargo.toml
index a2823463c5d67..a6e1e7ebd7b1e 100644
--- a/frame/support/procedural/Cargo.toml
+++ b/frame/support/procedural/Cargo.toml
@@ -19,7 +19,7 @@ derive-syn-parse = "0.1.5"
 Inflector = "0.11.4"
 cfg-expr = "0.15.1"
 itertools = "0.10.3"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full"] }
 frame-support-procedural-tools = { version = "4.0.0-dev", path = "./tools" }
diff --git a/frame/support/procedural/tools/Cargo.toml b/frame/support/procedural/tools/Cargo.toml
index 7caff534fc1f9..0b82b3ed09199 100644
--- a/frame/support/procedural/tools/Cargo.toml
+++ b/frame/support/procedural/tools/Cargo.toml
@@ -13,7 +13,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 proc-macro-crate = "1.1.3"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full", "visit", "extra-traits"] }
 frame-support-procedural-tools-derive = { version = "3.0.0", path = "./derive" }
diff --git a/frame/support/procedural/tools/derive/Cargo.toml b/frame/support/procedural/tools/derive/Cargo.toml
index 193df53f12917..1e3e81f3399f8 100644
--- a/frame/support/procedural/tools/derive/Cargo.toml
+++ b/frame/support/procedural/tools/derive/Cargo.toml
@@ -15,6 +15,6 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = { version = "1.0.28", features = ["proc-macro"] }
 syn = { version = "2.0.16", features = ["proc-macro", "full", "extra-traits", "parsing"] }
diff --git a/primitives/api/proc-macro/Cargo.toml b/primitives/api/proc-macro/Cargo.toml
index e3b2ef923dbe1..7733f7538f635 100644
--- a/primitives/api/proc-macro/Cargo.toml
+++ b/primitives/api/proc-macro/Cargo.toml
@@ -18,7 +18,7 @@ proc-macro = true
 [dependencies]
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full", "fold", "extra-traits", "visit"] }
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 blake2 = { version = "0.10.4", default-features = false }
 proc-macro-crate = "1.1.3"
 expander = "1.0.0"
diff --git a/primitives/core/hashing/proc-macro/Cargo.toml b/primitives/core/hashing/proc-macro/Cargo.toml
index 8534adfaa1cf8..89b3c9a83af7a 100644
--- a/primitives/core/hashing/proc-macro/Cargo.toml
+++ b/primitives/core/hashing/proc-macro/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full", "parsing"] }
 sp-core-hashing = { version = "9.0.0", default-features = false, path = "../" }
diff --git a/primitives/debug-derive/Cargo.toml b/primitives/debug-derive/Cargo.toml
index bbac79a846504..69c37225380b4 100644
--- a/primitives/debug-derive/Cargo.toml
+++ b/primitives/debug-derive/Cargo.toml
@@ -19,7 +19,7 @@ proc-macro = true
 [dependencies]
 quote = "1.0.28"
 syn = "2.0.16"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 
 [features]
 default = [ "std" ]
diff --git a/primitives/runtime-interface/proc-macro/Cargo.toml b/primitives/runtime-interface/proc-macro/Cargo.toml
index 4b50dfe2a7a13..ad5a482f5e030 100644
--- a/primitives/runtime-interface/proc-macro/Cargo.toml
+++ b/primitives/runtime-interface/proc-macro/Cargo.toml
@@ -18,6 +18,6 @@ proc-macro = true
 [dependencies]
 Inflector = "0.11.4"
 proc-macro-crate = "1.1.3"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full", "visit", "fold", "extra-traits"] }
diff --git a/primitives/version/proc-macro/Cargo.toml b/primitives/version/proc-macro/Cargo.toml
index d47a233ecbb87..4644a0eab52ef 100644
--- a/primitives/version/proc-macro/Cargo.toml
+++ b/primitives/version/proc-macro/Cargo.toml
@@ -17,7 +17,7 @@ proc-macro = true
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "3.2.2", features = [ "derive" ] }
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full", "fold", "extra-traits", "visit"] }
 
diff --git a/test-utils/derive/Cargo.toml b/test-utils/derive/Cargo.toml
index b5d73b8e99396..fc2fddcfbd53a 100644
--- a/test-utils/derive/Cargo.toml
+++ b/test-utils/derive/Cargo.toml
@@ -11,7 +11,7 @@ publish = false
 
 [dependencies]
 proc-macro-crate = "1.1.3"
-proc-macro2 = "1.0.56"
+proc-macro2 = "1.0.66"
 quote = "1.0.28"
 syn = { version = "2.0.16", features = ["full"] }