diff --git a/pkgs/development/python-modules/sqlalchemy/default.nix b/pkgs/development/python-modules/sqlalchemy/default.nix
index ec427003fc47..5eb1a19c8917 100644
--- a/pkgs/development/python-modules/sqlalchemy/default.nix
+++ b/pkgs/development/python-modules/sqlalchemy/default.nix
@@ -29,14 +29,9 @@ buildPythonPackage rec {
 
   checkInputs = [
     pytestCheckHook
-    pytest_xdist
     mock
   ] ++ lib.optional (!isPy3k) pysqlite;
 
-  pytestFlagsArray = [
-    "-n auto"
-  ];
-
   postInstall = ''
     sed -e 's:--max-worker-restart=5::g' -i setup.cfg
   '';