diff --git a/visual_workflow_builder/backend/api_v3/execute.py b/visual_workflow_builder/backend/api_v3/execute.py
index 5f09c3340..df57d08a2 100644
--- a/visual_workflow_builder/backend/api_v3/execute.py
+++ b/visual_workflow_builder/backend/api_v3/execute.py
@@ -11,6 +11,7 @@ GET  /api/v3/execute/status    → État actuel
 
 from flask import jsonify, request
 from datetime import datetime
+from typing import Any, Dict, Optional
 import uuid
 import threading
 import time