diff --git a/pkgs/development/python-modules/pygobject-stubs/default.nix b/pkgs/development/python-modules/pygobject-stubs/default.nix
index a1836cdbf2d6..2cecb2e3867c 100644
--- a/pkgs/development/python-modules/pygobject-stubs/default.nix
+++ b/pkgs/development/python-modules/pygobject-stubs/default.nix
@@ -26,16 +26,6 @@ buildPythonPackage rec {
     setuptools
   ];
 
-  passthru.optional-dependencies = {
-    dev = [
-      black
-      codespell
-      isort
-      mypy
-      pre-commit
-      pygobject3
-    ];
-  };
 
   meta = with lib; {
     description = "PEP 561 Typing Stubs for PyGObject";