diff --git a/Cargo.lock b/Cargo.lock
index edd3cb06..25ea6854 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -182,9 +182,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.68"
+version = "2.0.67"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "901fa70d88b9d6c98022e23b4136f9f3e54e4662c3bc1bd1d84a42a9a0f0c1e9"
+checksum = "ff8655ed1d86f3af4ee3fd3263786bc14245ad17c4c7e85ba7187fb3ae028c90"
 dependencies = [
  "proc-macro2",
  "quote",