diff --git a/pkgs/development/python-modules/twentemilieu/default.nix b/pkgs/development/python-modules/twentemilieu/default.nix
index abef5723d242..f91d96c0658e 100644
--- a/pkgs/development/python-modules/twentemilieu/default.nix
+++ b/pkgs/development/python-modules/twentemilieu/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "twentemilieu";
-  version = "2.2.0";
+  version = "2.2.1";
   pyproject = true;
 
   disabled = pythonOlder "3.11";
@@ -22,7 +22,7 @@ buildPythonPackage rec {
     owner = "frenck";
     repo = "python-twentemilieu";
     tag = "v${version}";
-    hash = "sha256-8tYa/fnc8km0Tl0N/OMP8GUUlIjzB8XP1Ivy9jDmY3s=";
+    hash = "sha256-N6XSf212orMf3vqIjBzu+4fpKX7kFinH180lCWXtjzc=";
   };
 
   postPatch = ''