diff --git a/tox.ini b/tox.ini
index 188aaa4f..a01ad397 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,6 +11,7 @@ flags = --implicit-reexport --strict --allow-untyped-decorators --allow-subclass
 
 [pytest]
 addopts = --cov=ahriman --cov-report=term-missing:skip-covered --no-cov-on-fail --cov-fail-under=100 --spec
+asyncio_default_fixture_loop_scope = function
 asyncio_mode = auto
 spec_test_format = {result} {docstring_summary}