diff --git a/pkgs/development/python-modules/pyzx/default.nix b/pkgs/development/python-modules/pyzx/default.nix
index a391f26a3139..d39d2b48ef24 100644
--- a/pkgs/development/python-modules/pyzx/default.nix
+++ b/pkgs/development/python-modules/pyzx/default.nix
@@ -3,7 +3,6 @@
   buildPythonPackage,
   pythonOlder,
   fetchFromGitHub,
-  pythonRelaxDepsHook,
   pytestCheckHook,
   setuptools,
   ipywidgets,