diff --git a/Cargo.lock b/Cargo.lock
index 73a45701f1..dabf4448a8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1960,9 +1960,9 @@ checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "prettyplease"
-version = "0.1.19"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a49e86d2c26a24059894a3afa13fd17d063419b05dfb83f06d9c3566060c3f5a"
+checksum = "c142c0e46b57171fe0c528bee8c5b7569e80f0c17e377cd0e30ea57dbc11bb51"
 dependencies = [
  "proc-macro2",
  "syn",