diff --git a/pkgs/development/python-modules/ipydatawidgets/default.nix b/pkgs/development/python-modules/ipydatawidgets/default.nix
index 45695a23166e..635e55b53382 100644
--- a/pkgs/development/python-modules/ipydatawidgets/default.nix
+++ b/pkgs/development/python-modules/ipydatawidgets/default.nix
@@ -4,7 +4,7 @@
   fetchPypi,
   isPy27,
   pytest,
-  pytest-cov,
+  pytest-cov-stub,
   nbval,
   jupyter-packaging,
   ipywidgets,
@@ -38,7 +38,7 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     pytest
-    pytest-cov
+    pytest-cov-stub
     nbval
   ];