diff --git a/backend/src/services/WbotServices/wbotMessageListener.ts b/backend/src/services/WbotServices/wbotMessageListener.ts
index bac461e..2c11f4a 100644
--- a/backend/src/services/WbotServices/wbotMessageListener.ts
+++ b/backend/src/services/WbotServices/wbotMessageListener.ts
@@ -906,7 +906,7 @@ const handleMessage = async (
 
 const handleMsgAck = async (msg_id: any, ack: any) => {
 
-  await new Promise(r => setTimeout(r, 500));
+  await new Promise(r => setTimeout(r, 4000));
 
   const io = getIO();