diff --git a/tests/test_alertmanager.py b/tests/test_alertmanager.py
index 5cc4cc7..960d8b2 100644
--- a/tests/test_alertmanager.py
+++ b/tests/test_alertmanager.py
@@ -8,7 +8,6 @@ from unittest.mock import Mock, patch
 
 import aiohttp
 import aiohttp.test_utils
-import aiotools
 from aiohttp import web, web_request
 from diskcache import Cache
 from freezegun import freeze_time