diff --git a/cumulus/Cargo.lock b/cumulus/Cargo.lock
index c587e94c8f..712cc8169e 100644
--- a/cumulus/Cargo.lock
+++ b/cumulus/Cargo.lock
@@ -8479,9 +8479,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.42"
+version = "1.0.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c278e965f1d8cf32d6e0e96de3d3e79712178ae67986d9cf9151f51e95aac89b"
+checksum = "0a2ca2c61bc9f3d74d2886294ab7b9853abd9c1ad903a3ac7815c58989bb7bab"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/cumulus/pallets/parachain-system/proc-macro/Cargo.toml b/cumulus/pallets/parachain-system/proc-macro/Cargo.toml
index 55d1696bd5..3debfc3ef3 100644
--- a/cumulus/pallets/parachain-system/proc-macro/Cargo.toml
+++ b/cumulus/pallets/parachain-system/proc-macro/Cargo.toml
@@ -10,7 +10,7 @@ proc-macro = true
 
 [dependencies]
 syn = "1.0.99"
-proc-macro2 = "1.0.42"
+proc-macro2 = "1.0.43"
 quote = "1.0.21"
 proc-macro-crate = "1.2.1"