diff --git a/unit_test/docker_container_test.py b/unit_test/docker_container_test.py
index de14ea38..b4c1d390 100644
--- a/unit_test/docker_container_test.py
+++ b/unit_test/docker_container_test.py
@@ -7,7 +7,7 @@ import subprocess
 import tempfile
 import textwrap
 from pathlib import Path, PurePath, PurePosixPath
-from typing import Dict, Optional, Union
+from typing import Optional
 
 import pytest
 import toml