diff --git a/pkgs/development/python-modules/atenpdu/default.nix b/pkgs/development/python-modules/atenpdu/default.nix
index e7669f8bf005..185f64d58f6e 100644
--- a/pkgs/development/python-modules/atenpdu/default.nix
+++ b/pkgs/development/python-modules/atenpdu/default.nix
@@ -1,5 +1,4 @@
 { lib
-, async-timeout
 , buildPythonPackage
 , fetchPypi
 , async-timeout