diff --git a/process-repository.py b/process-repository.py
index 8174221..1e88778 100644
--- a/process-repository.py
+++ b/process-repository.py
@@ -61,7 +61,7 @@ def main():
                 issue["created_at"].replace("Z", "+00:00")
             )
             issue_older_than_date = datetime.now(timezone.utc) - timedelta(
-                days=issue_stale_days
+                days=int(issue_stale_days)
             )
             issue_current_labels = {label["name"] for label in issue.get("labels", [])}
             issue_update_labels = list(issue_current_labels)
@@ -130,7 +130,7 @@ def main():
                 pull_request["created_at"].replace("Z", "+00:00")
             )
             pull_request_older_than_date = datetime.now(timezone.utc) - timedelta(
-                days=pull_request_stale_days
+                days=int(pull_request_stale_days)
             )
             pull_request_current_labels = {
                 label["name"] for label in pull_request.get("labels", [])