diff --git a/pkgs/development/python-modules/zope-event/default.nix b/pkgs/development/python-modules/zope-event/default.nix
index 61c26a939355..0c33629346d7 100644
--- a/pkgs/development/python-modules/zope-event/default.nix
+++ b/pkgs/development/python-modules/zope-event/default.nix
@@ -8,21 +8,16 @@
 
 buildPythonPackage rec {
   pname = "zope-event";
-  version = "6.0";
+  version = "6.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "zopefoundation";
     repo = "zope.event";
     tag = version;
-    hash = "sha256-1ZdhJwxzYsMT2s+z4MLR71cLFzIEmwE0KFilwg7BQ1E=";
+    hash = "sha256-ugyHPqqFcObgldThkkUQgZnl1fVEcXYFnXyAxNwUFIE=";
   };
 
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace-fail "setuptools ==" "setuptools >="
-  '';
-
   build-system = [ setuptools ];
 
   pythonImportsCheck = [ "zope.event" ];