diff --git a/pkgs/development/python-modules/pydocstyle/default.nix b/pkgs/development/python-modules/pydocstyle/default.nix
index 1825c690f30..cef9e964425 100644
--- a/pkgs/development/python-modules/pydocstyle/default.nix
+++ b/pkgs/development/python-modules/pydocstyle/default.nix
@@ -19,11 +19,11 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ snowballstemmer ];
 
-  checkInputs = [ pytest pytestpep8 mock ];
+  checkInputs = [ pytest mock ];
 
   checkPhase = ''
     # test_integration.py installs packages via pip
-    py.test --pep8 --cache-clear -vv src/tests -k "not test_integration"
+    py.test --cache-clear -vv src/tests -k "not test_integration"
   '';
 
   meta = with lib; {