diff --git a/README.md b/README.md
index 81ae823..8be8709 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # 哪吒面板
 
-![dashboard](https://img.shields.io/badge/管理面板-v0.4.4-brightgreen?style=for-the-badge&logo=github) ![GitHub Workflow Status](https://img.shields.io/github/workflow/status/naiba/nezha/Dashboard%20image?label=%E9%9D%A2%E6%9D%BF%E6%9E%84%E5%BB%BA&logo=github&style=for-the-badge) ![Agent release](https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&label=Agent&style=for-the-badge&logo=github) ![GitHub Workflow Status](https://img.shields.io/github/workflow/status/naiba/nezha/Agent%20release?label=Agent%20%E6%9E%84%E5%BB%BA&logo=github&style=for-the-badge) ![shell](https://img.shields.io/badge/安装脚本-v0.4.2-brightgreen?style=for-the-badge&logo=linux)
+![dashboard](https://img.shields.io/badge/管理面板-v0.4.4-brightgreen?style=for-the-badge&logo=github) ![GitHub Workflow Status](https://img.shields.io/github/workflow/status/naiba/nezha/Dashboard%20image?label=%E9%9D%A2%E6%9D%BF%E6%9E%84%E5%BB%BA&logo=github&style=for-the-badge) ![Agent release](https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&label=Agent&style=for-the-badge&logo=github) ![GitHub Workflow Status](https://img.shields.io/github/workflow/status/naiba/nezha/Agent%20release?label=Agent%20%E6%9E%84%E5%BB%BA&logo=github&style=for-the-badge) ![shell](https://img.shields.io/badge/安装脚本-v0.4.3-brightgreen?style=for-the-badge&logo=linux)
 
 系统状态监控报警、API(SSL证书变更、即将到期、到期)/TCP端口存活/PING 监控、计划任务(可以定时在Agent上执行命令，备份、重启、What ever you want)、极省资源，64M 服务器也能装 agent。
 
@@ -20,14 +20,14 @@
 
     ```shell
     curl -L https://raw.githubusercontent.com/naiba/nezha/master/script/install.sh -o nezha.sh && chmod +x nezha.sh
-    sudo ./nezha.sh
+    ./nezha.sh
     ```
 
 - 国内加速：（有缓存可能不是最新的，非作者维护）
 
     ```shell
     curl -L https://raw.sevencdn.com/naiba/nezha/master/script/install.sh -o nezha.sh && chmod +x nezha.sh
-    sudo ./nezha.sh
+    CN=true ./nezha.sh
     ```
 
 ## 功能说明
diff --git a/script/install.sh b/script/install.sh
index c89e167..eb63fad 100755
--- a/script/install.sh
+++ b/script/install.sh
@@ -10,7 +10,7 @@ NZ_BASE_PATH="/opt/nezha"
 NZ_DASHBOARD_PATH="${NZ_BASE_PATH}/dashboard"
 NZ_AGENT_PATH="${NZ_BASE_PATH}/agent"
 NZ_AGENT_SERVICE="/etc/systemd/system/nezha-agent.service"
-NZ_VERSION="v0.4.2"
+NZ_VERSION="v0.4.3"
 GITHUB_RAW_URL="raw.githubusercontent.com"
 GITHUB_URL="github.com"
 
@@ -85,8 +85,7 @@ pre_check() {
         os_arch="arm"
     fi
 
-    ## server location
-    if curl -s api.myip.la/json | grep -q 'China'; then
+    if [[ -z "${CN}" ]]; then
         GITHUB_RAW_URL="raw.sevencdn.com"
         GITHUB_URL="hub.fastgit.org"
     fi