diff --git a/ambient_toolbox/gitlab/coverage.py b/ambient_toolbox/gitlab/coverage.py
index e7fdc35..027b3cd 100644
--- a/ambient_toolbox/gitlab/coverage.py
+++ b/ambient_toolbox/gitlab/coverage.py
@@ -5,6 +5,7 @@
 import sys
 from difflib import ndiff
 from http import HTTPStatus
+from typing import Optional
 
 import httpx
 
@@ -55,7 +56,7 @@ def get_latest_target_branch_commit_sha(self) -> str:
         )
         return result.stdout.decode("utf-8").strip()
 
-    def get_pipeline_id_by_commit_sha(self, sha: str) -> int | None:
+    def get_pipeline_id_by_commit_sha(self, sha: str) -> Optional[int]:
         pipeline_url = f"{self.pipelines_url_with_token}&sha={sha}"
         response = httpx.get(pipeline_url)
         status_code = response.status_code