diff --git a/app/mqtt/Publish.php b/app/mqtt/Publish.php
index 9dbe824..1970a94 100644
--- a/app/mqtt/Publish.php
+++ b/app/mqtt/Publish.php
@@ -13,9 +13,9 @@ class Publish
 
     public  function onConnect(TcpConnection $connection)
     {
-        $mqtt = new \Workerman\Mqtt\Client('mqtt://ceshi-mqtt.lihaink.cn:1883', array(
-            "username" => "demo2",
-            "password" => "123456",
+        $mqtt = new \Workerman\Mqtt\Client('mqtt://mqtt.lihaink.cn:1883', array(
+            "username" => "lihai_lot_land_1",
+            "password" => "lihai_lot_land_1",
             "client_id" => "admin_123",
         ));
         $mqtt->connect();