diff --git a/pkgs/development/python-modules/mlxtend/default.nix b/pkgs/development/python-modules/mlxtend/default.nix
index 1ee22516471f..87f82295d1e8 100644
--- a/pkgs/development/python-modules/mlxtend/default.nix
+++ b/pkgs/development/python-modules/mlxtend/default.nix
@@ -7,7 +7,6 @@
   pytestCheckHook,
   scipy,
   numpy,
-  numpy_1,
   scikit-learn,
   pandas,
   matplotlib,