diff --git a/pkgs/development/python-modules/aiohttp/default.nix b/pkgs/development/python-modules/aiohttp/default.nix
index c0722c8c9781..d6203c1ebeb2 100644
--- a/pkgs/development/python-modules/aiohttp/default.nix
+++ b/pkgs/development/python-modules/aiohttp/default.nix
@@ -15,7 +15,6 @@
 , freezegun
 , gunicorn
 , pytest-mock
-, pytest-xdist
 , pytestCheckHook
 , re-assert
 , trustme
@@ -52,16 +51,11 @@ buildPythonPackage rec {
     freezegun
     gunicorn
     pytest-mock
-    pytest-xdist
     pytestCheckHook
     re-assert
     trustme
   ];
 
-  pytestFlagsArray = [
-    "-n auto"
-  ];
-
   disabledTests = [
     # Disable tests that require network access
     "test_mark_formdata_as_processed"