diff --git a/Cargo.lock b/Cargo.lock
index 493b9cbff..cf6d5c546 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -782,9 +782,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.33"
+version = "1.0.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb37d2df5df740e582f28f8560cf425f52bb267d872fe58358eadb554909f07a"
+checksum = "2f84e92c0f7c9d58328b85a78557813e4bd845130db68d7184635344399423b1"
 dependencies = [
  "unicode-xid",
 ]