diff --git a/pkgs/development/python-modules/experiment-utilities/default.nix b/pkgs/development/python-modules/experiment-utilities/default.nix
index 08c72cb88c3e..f2f40fccad27 100644
--- a/pkgs/development/python-modules/experiment-utilities/default.nix
+++ b/pkgs/development/python-modules/experiment-utilities/default.nix
@@ -44,7 +44,7 @@ buildPythonPackage rec {
 
   pythonRemoveDeps = [
     # Not available anymore in nixpkgs
-    "jupyter-contrib-nbextensions"
+    "jupyter_contrib_nbextensions"
   ];
 
   dependencies = [