diff --git a/pytest.ini b/pytest.ini
index 3c9dea1..378d23a 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,5 +1,7 @@
 [pytest]
 
 norecursedirs = build docs .*
 markers =
     fs: execute tests that write to the filesystem
+
+asyncio_mode = strict