diff --git a/Cargo.lock b/Cargo.lock
index 6e5f639d006..7d7bf048689 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -9082,9 +9082,9 @@ 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/pallets/parachain-system/proc-macro/Cargo.toml b/pallets/parachain-system/proc-macro/Cargo.toml
index 6510f62b3bc..850c4977106 100644
--- a/pallets/parachain-system/proc-macro/Cargo.toml
+++ b/pallets/parachain-system/proc-macro/Cargo.toml
@@ -10,7 +10,7 @@ proc-macro = true
 
 [dependencies]
 syn = "1.0.107"
-proc-macro2 = "1.0.50"
+proc-macro2 = "1.0.51"
 quote = "1.0.23"
 proc-macro-crate = "1.3.0"