diff --git a/Cargo.lock b/Cargo.lock
index b8a262d..82fd6e8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -159,9 +159,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.68"
+version = "1.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b1106fec09662ec6dd98ccac0f81cef56984d0b49f75c92d8cbad76e20c005c"
+checksum = "75cb1540fadbd5b8fbccc4dddad2734eba435053f725621c070711a14bb5f4b8"
 dependencies = [
  "unicode-ident",
 ]