diff --git a/Cargo.lock b/Cargo.lock
index a9561556c..3b1a81472 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -841,9 +841,9 @@ checksum = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.14"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de40dd4ff82d9c9bab6dae29dbab1167e515f8df9ed17d2987cb6012db206933"
+checksum = "70a50b9351bfa8d65a7d93ce712dc63d2fd15ddbf2c36990fc7cac344859c04f"
 dependencies = [
  "unicode-xid 0.2.0",
 ]