diff --git a/pyproject.toml b/pyproject.toml
index a4cf0312..a98fd282 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -103,6 +103,7 @@ exclude = [
 follow_imports = "silent"
 
 [tool.pytest.ini_options]
+asyncio_default_fixture_loop_scope = "function"
 markers = [
     "gpu: marks tests that should run with gpus (deselect with '-m \"not gpu\"')",
 ]