diff --git a/pytest.ini b/pytest.ini
index c5186e582bb1a58fec0cb9bb6b7f30ee4210727f..10242f24f0323cac877764b3d4db78b11aa182f7 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -4,3 +4,5 @@ norecursedirs = build docs .*
 markers =
     fs: tests that involve filesystem ios
     requires_optional_deps: tests in test_cli.py that should not run if optional dependencies are not installed
+
+asyncio_mode = strict