diff --git a/tests/unittests/distros/test_alpine.py b/tests/unittests/distros/test_alpine.py
index 2c8daaeb123..6e301d404af 100644
--- a/tests/unittests/distros/test_alpine.py
+++ b/tests/unittests/distros/test_alpine.py
@@ -5,7 +5,6 @@
 import pytest
 
 from cloudinit import distros, util
-from tests.unittests.helpers import TestCase
 
 
 class TestAlpineBusyboxUserGroup:
@@ -50,7 +49,7 @@ def test_busybox_add_user(self, m_which, m_subp, tmpdir):
         assert contents == expected
 
 
-class TestAlpineShadowUserGroup(TestCase):
+class TestAlpineShadowUserGroup:
     distro = distros.fetch("alpine")("alpine", {}, None)
 
     @mock.patch("cloudinit.distros.alpine.subp.subp")