diff --git a/Cargo.lock b/Cargo.lock
index d9776f36f6..66e829132e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2266,9 +2266,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.50"
+version = "1.0.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
+checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/codegen/Cargo.toml b/codegen/Cargo.toml
index 98266f9f20..3890f37827 100644
--- a/codegen/Cargo.toml
+++ b/codegen/Cargo.toml
@@ -16,7 +16,7 @@ codec = { package = "parity-scale-codec", version = "3.0.0", default-features =
 darling = "0.14.0"
 frame-metadata = "15.0.0"
 heck = "0.4.1"
-proc-macro2 = "1.0.24"
+proc-macro2 = "1.0.51"
 proc-macro-error = "1.0.4"
 quote = "1.0.8"
 syn = "1.0.58"