diff --git a/Cargo.lock b/Cargo.lock
index 1bd3dafdf236..941888f7bbb5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1247,7 +1247,7 @@ dependencies = [
 
 [[package]]
 name = "rustfmt-nightly"
-version = "1.4.20"
+version = "1.4.21"
 dependencies = [
  "annotate-snippets 0.6.1",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index f163257ec7bb..6abf2ead7de9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "rustfmt-nightly"
-version = "1.4.20"
+version = "1.4.21"
 authors = ["Nicholas Cameron <ncameron@mozilla.com>", "The Rustfmt developers"]
 description = "Tool to find and fix Rust formatting issues"
 repository = "https://github.com/rust-lang/rustfmt"