diff --git a/bin/imserver/config/master.cluster.json b/bin/imserver/config/master.cluster.json
index 566617fe..0cca9082 100644
--- a/bin/imserver/config/master.cluster.json
+++ b/bin/imserver/config/master.cluster.json
@@ -1,7 +1,7 @@
 [
   {
     "instance_id": 1,
-    "ip": "192.168.100.45",
-    "listen_port": 7821
+    "ip": "127.0.0.1",
+    "listen_port": 7628
   }
 ]