diff --git a/Cargo.lock b/Cargo.lock
index f998aff..fa57a44 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1505,9 +1505,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.54"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e472a104799c74b514a57226160104aa483546de37e839ec50e3c2e41dd87534"
+checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
 dependencies = [
  "unicode-ident",
 ]