diff --git a/gnu/packages/xdisorg.scm b/gnu/packages/xdisorg.scm
index 252a6663de..55d26850f0 100644
--- a/gnu/packages/xdisorg.scm
+++ b/gnu/packages/xdisorg.scm
@@ -2000,7 +2000,7 @@ to an arbitrary balanced color.")
            libxxf86vm
            libxcb
            python
-           python-pygobject
+           python-pygobject-3.50
            python-pyxdg
            wayland))
     (home-page "https://gitlab.com/chinstrap/gammastep")