diff --git a/README-zh.md b/README-zh.md
index ecb00196..c4ec5f91 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -12,7 +12,7 @@
 
 基于Golang的分布式爬虫管理平台，支持Python、NodeJS、Go、Java、PHP等多种编程语言以及多种爬虫框架。
 
-[查看演示 Demo](http://crawlab.cn:8080) | [文档](https://tikazyq.github.io/crawlab-docs)
+[查看演示 Demo](http://crawlab.cn/demo) | [文档](https://tikazyq.github.io/crawlab-docs)
 
 ## 安装
 
diff --git a/README.md b/README.md
index b3d1cca1..c98e6cc8 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@
 
 Golang-based distributed web crawler management platform, supporting various languages including Python, NodeJS, Go, Java, PHP and various web crawler frameworks including Scrapy, Puppeteer, Selenium.
 
-[Demo](http://crawlab.cn:8080) | [Documentation](https://tikazyq.github.io/crawlab-docs)
+[Demo](http://crawlab.cn/demo) | [Documentation](https://tikazyq.github.io/crawlab-docs)
 
 ## Installation
 
diff --git a/jenkins/docker-compose.yml b/jenkins/docker-compose.yml
index fd7d2904..924922a0 100644
--- a/jenkins/docker-compose.yml
+++ b/jenkins/docker-compose.yml
@@ -25,6 +25,7 @@ services:
     depends_on:
       - mongo
       - redis
+    replicas: 3
   mongo:
     image: mongo:latest
     restart: always