diff --git a/pkgs/development/python-modules/widgetsnbextension/default.nix b/pkgs/development/python-modules/widgetsnbextension/default.nix
index e821fb93e80c..a617bb439657 100644
--- a/pkgs/development/python-modules/widgetsnbextension/default.nix
+++ b/pkgs/development/python-modules/widgetsnbextension/default.nix
@@ -7,12 +7,12 @@
 
 buildPythonPackage rec {
   pname = "widgetsnbextension";
-  version = "4.0.14";
+  version = "4.0.15";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-o2KbBOPtuJMhLfhiA4xyMvYpczc4adtQhK7XObQ3ta8=";
+    hash = "sha256-3oYQY5mW8VZ5UtdjpaQa+K838ldaQfmFKjj5R+uCo7k=";
   };
 
   nativeBuildInputs = [ jupyter-packaging ];