diff --git a/cumulus/Cargo.lock b/cumulus/Cargo.lock
index 956474ce51..9a55052437 100644
--- a/cumulus/Cargo.lock
+++ b/cumulus/Cargo.lock
@@ -11844,9 +11844,9 @@ checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
 name = "syn"
-version = "1.0.95"
+version = "1.0.96"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbaf6116ab8924f39d52792136fb74fd60a80194cf1b1c6ffa6453eef1c3f942"
+checksum = "0748dd251e24453cb8717f0354206b91557e4ec8703673a4b30208f2abaf1ebf"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/cumulus/pallets/parachain-system/proc-macro/Cargo.toml b/cumulus/pallets/parachain-system/proc-macro/Cargo.toml
index 7ac06a1b6e..d27ca0d9b9 100644
--- a/cumulus/pallets/parachain-system/proc-macro/Cargo.toml
+++ b/cumulus/pallets/parachain-system/proc-macro/Cargo.toml
@@ -9,7 +9,7 @@ description = "Proc macros provided by the parachain-system pallet"
 proc-macro = true
 
 [dependencies]
-syn = "1.0.94"
+syn = "1.0.96"
 proc-macro2 = "1.0.39"
 quote = "1.0.18"
 proc-macro-crate = "1.1.3"