diff --git a/pkgs/development/python-modules/apptools/default.nix b/pkgs/development/python-modules/apptools/default.nix
index a6bb0584018..d44a3c5fd42 100644
--- a/pkgs/development/python-modules/apptools/default.nix
+++ b/pkgs/development/python-modules/apptools/default.nix
@@ -1,7 +1,7 @@
 { lib, fetchPypi, buildPythonPackage
 , configobj, six, traitsui
 , pytestCheckHook, tables, pandas
-, pythonOlder, importlib-resources
+, importlib-resources
 }:
 
 buildPythonPackage rec {
@@ -17,7 +17,6 @@ buildPythonPackage rec {
     configobj
     six
     traitsui
-  ] ++ lib.optionals (pythonOlder "3.9") [
     importlib-resources
   ];