diff --git a/tests/test_utilities/test_csvclean.py b/tests/test_utilities/test_csvclean.py
index dbd3e7fd..4937a8f4 100644
--- a/tests/test_utilities/test_csvclean.py
+++ b/tests/test_utilities/test_csvclean.py
@@ -1,5 +1,4 @@
 import io
-import os
 import sys
 from unittest.mock import patch