diff --git a/pytest.ini b/pytest.ini
--- a/pytest.ini
+++ b/pytest.ini
@@ -5,3 +5,5 @@
 markers =
     db: marks tests as using a db (deselect with '-m "not db"')
     fs: marks tests as using the filesystem (deselect with '-m "not fs"')
+
+asyncio_mode = strict