diff --git a/pkgs/development/python-modules/pyupgrade/default.nix b/pkgs/development/python-modules/pyupgrade/default.nix
index b1c5fe9fe22c..a2965bb082d9 100644
--- a/pkgs/development/python-modules/pyupgrade/default.nix
+++ b/pkgs/development/python-modules/pyupgrade/default.nix
@@ -9,7 +9,7 @@
 
 buildPythonPackage rec {
   pname = "pyupgrade";
-  version = "3.20.0";
+  version = "3.21.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     owner = "asottile";
     repo = "pyupgrade";
     rev = "v${version}";
-    hash = "sha256-u4tbzxO7Q9+lGoAtg6cs0pyr/VCLmICOt6VVlvPmZV0=";
+    hash = "sha256-8nvA0uN+j9lkACcNohfthW9lKfI9GIxLEwtJ+3lCYV0=";
   };
 
   propagatedBuildInputs = [ tokenize-rt ];