diff --git a/pkgs/development/python-modules/pycatch22/default.nix b/pkgs/development/python-modules/pycatch22/default.nix
index 60a7b9eeccd4..c82088d9adbe 100644
--- a/pkgs/development/python-modules/pycatch22/default.nix
+++ b/pkgs/development/python-modules/pycatch22/default.nix
@@ -46,7 +46,7 @@ buildPythonPackage rec {
     description = "Python implementation of catch22";
     homepage = "https://github.com/DynamicsAndNeuralSystems/pycatch22";
     changelog = "https://github.com/DynamicsAndNeuralSystems/pycatch22/releases/tag/v${version}";
-    license = licenses.gpl3Only;
+    license = licenses.gpl3Plus;
     maintainers = with maintainers; [ mbalatsko ];
   };
 }