diff --git a/pytest.ini b/pytest.ini
index 0c3bb47..c752097 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,3 +1,5 @@
 [pytest]
 addopts = -p no:pytest_swh_scheduler
 norecursedirs = build docs .*
+
+asyncio_mode = strict