diff --git a/pyproject.toml b/pyproject.toml
index 63a26fd51342..bc5842fc51c6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -558,6 +558,9 @@ python_files = [
 testpaths = [
     "tests",
 ]
+
+asyncio_default_fixture_loop_scope = "function"
+
 # Keep temporary directories (created by `tmp_path`) for 2 recent runs only failed tests.
 tmp_path_retention_count = "2"
 tmp_path_retention_policy = "failed"