diff --git a/pytest.ini b/pytest.ini
--- a/pytest.ini
+++ b/pytest.ini
@@ -2,3 +2,4 @@
 addopts = -p no:flask
 norecursedirs = build docs .*
 DJANGO_SETTINGS_MODULE = swh.auth.tests.django.app.apptest.settings
+asyncio_mode = strict