diff --git a/example/standalone-mysql.yaml b/example/standalone-mysql.yaml
index ca214e4..bfd689e 100644
--- a/example/standalone-mysql.yaml
+++ b/example/standalone-mysql.yaml
@@ -11,7 +11,7 @@ services:
       - MYSQL_MASTER_SERVICE_DB_NAME=nacos_devtest
       - MYSQL_MASTER_SERVICE_PORT=3306
       - MYSQL_SLAVE_SERVICE_HOST=mysql-slave
-      - MYSQL_SLAVE_SERVICE_PORT=3306
+      - MYSQL_SLAVE_SERVICE_PORT=3305
       - MYSQL_MASTER_SERVICE_USER=nacos
       - MYSQL_MASTER_SERVICE_PASSWORD=nacos
     volumes: