diff --git a/tests/ci/docker_test.py b/tests/ci/docker_test.py
index 9d68f436439..d5d27f73694 100644
--- a/tests/ci/docker_test.py
+++ b/tests/ci/docker_test.py
@@ -10,9 +10,8 @@ from pr_info import PRInfo
 from report import TestResult
 import docker_images_check as di
 
-with patch("git_helper.Git"):
-    from version_helper import get_version_from_string
-    import docker_server as ds
+from version_helper import get_version_from_string
+import docker_server as ds
 
 # di.logging.basicConfig(level=di.logging.INFO)
 
@@ -312,7 +311,3 @@ class TestDockerServer(unittest.TestCase):
         for case in cases_equal:
             release = ds.auto_release_type(case[0], "auto")
             self.assertEqual(case[1], release)
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/tests/ci/git_helper.py b/tests/ci/git_helper.py
index a9f2bf9b1cc..ab1caa42660 100644
--- a/tests/ci/git_helper.py
+++ b/tests/ci/git_helper.py
@@ -126,15 +126,16 @@ class Git:
         # Format should match TAG_REGEXP
         if self._ignore_no_tags and is_shallow():
             try:
-                self._update_tags()
+                self._update_tags(True)
             except subprocess.CalledProcessError:
                 pass
 
             return
         self._update_tags()
 
-    def _update_tags(self):
-        self.latest_tag = self.run("git describe --tags --abbrev=0")
+    def _update_tags(self, suppress_stderr: bool = False) -> None:
+        stderr = subprocess.DEVNULL if suppress_stderr else None
+        self.latest_tag = self.run("git describe --tags --abbrev=0", stderr=stderr)
         # Format should be: {latest_tag}-{commits_since_tag}-g{sha_short}
         self.description = self.run("git describe --tags --long")
         self.commits_since_tag = int(