diff --git a/requirements_test.txt b/requirements_test.txt
index 3b1380d..e3a83e9 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -7,4 +7,4 @@ pytest-asyncio
 requests_mock
 aiohttp
 aioresponses
-tox==4.27.0
+tox==4.28.0