diff --git a/Cargo.lock b/Cargo.lock
index 73b01904f..5d083ad0d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -841,9 +841,9 @@ checksum = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.12"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8872cf6f48eee44265156c111456a700ab3483686b3f96df4cf5481c89157319"
+checksum = "53f5ffe53a6b28e37c9c1ce74893477864d64f74778a93a4beb43c8fa167f639"
 dependencies = [
  "unicode-xid 0.2.0",
 ]