diff --git a/src/judas_server/backend/backend_server.py b/src/judas_server/backend/backend_server.py
index 6338a02..7beb0a6 100644
--- a/src/judas_server/backend/backend_server.py
+++ b/src/judas_server/backend/backend_server.py
@@ -7,6 +7,8 @@ import socket
 import threading
 import time
 
+from typing import Any
+
 from judas_protocol import Category, ControlAction, Message
 
 from judas_server.backend.client import Client