diff --git a/tests/test_head_update.py b/tests/test_head_update.py
index 69a08dd..38bd3ec 100644
--- a/tests/test_head_update.py
+++ b/tests/test_head_update.py
@@ -1,5 +1,4 @@
 import encodings.idna  # noqa: F401
-import os
 import socket
 
 import pytest