diff --git a/src/_bcrypt/Cargo.lock b/src/_bcrypt/Cargo.lock
index b55b9737..604f6840 100644
--- a/src/_bcrypt/Cargo.lock
+++ b/src/_bcrypt/Cargo.lock
@@ -226,9 +226,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.64"
+version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78803b62cbf1f46fde80d7c0e803111524b9877184cfe7c3033659490ac7a7da"
+checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
 dependencies = [
  "unicode-ident",
 ]