diff --git a/github_app_geo_project/module/standard/changelog.py b/github_app_geo_project/module/standard/changelog.py
index 5b06e2ec04..dcfa88854d 100644
--- a/github_app_geo_project/module/standard/changelog.py
+++ b/github_app_geo_project/module/standard/changelog.py
@@ -512,7 +512,11 @@ def get_actions(self, context: module.GetActionContext) -> list[module.Action[di
             milestone_version = event_data.get("milestone", {}).get("title")
             if milestone_version is not None:
                 versions.add(milestone_version)
-            pull_request_version = event_data.get("pull_request", {}).get("milestone", {}).get("title")
+            pull_request_version = (
+                event_data["pull_request"]["milestone"].get("title")
+                if event_data.get("pull_request", {}).get("milestone")
+                else None
+            )
             if pull_request_version is not None:
                 versions.add(pull_request_version)
             return [