diff --git a/pkgs/development/python-modules/python-utils/default.nix b/pkgs/development/python-modules/python-utils/default.nix
index 8b86add14493..a74895545bb0 100644
--- a/pkgs/development/python-modules/python-utils/default.nix
+++ b/pkgs/development/python-modules/python-utils/default.nix
@@ -12,16 +12,16 @@
 
 buildPythonPackage rec {
   pname = "python-utils";
-  version = "3.9.0";
+  version = "3.9.1";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
+  disabled = pythonOlder "3.9";
 
   src = fetchFromGitHub {
     owner = "WoLpH";
     repo = pname;
-    rev = "refs/tags/v${version}";
-    hash = "sha256-ZmCT41VMz8BkIqF8Od5PqteyXToA4xASs0qCPD0cNc8=";
+    tag = "v${version}";
+    hash = "sha256-lzLzYI5jShfIwQqvfA8UtPjGawXE80ww7jb/gPzpeDo=";
   };
 
   postPatch = ''