diff --git a/src/setup.cfg b/src/setup.cfg
index c054bde88..a7075dd61 100644
--- a/src/setup.cfg
+++ b/src/setup.cfg
@@ -18,6 +18,7 @@ skip_glob = make_testdata.py,wsgi.py,bootstrap,celery_app.py,pretix/settings.py,
 [tool:pytest]
 DJANGO_SETTINGS_MODULE = tests.settings
 addopts = --reruns 3 -rw
+asyncio_default_fixture_loop_scope = function
 filterwarnings =
     error
     ignore:.*invalid escape sequence.*: