diff --git a/README.md b/README.md
index 6c76929..98b970c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
   <br>
   <small><i>LOGO designed by <a href="https://xio.ng" target="_blank">熊大</a> .</i></small>
   <br><br>
-<img alt="GitHub release (with filter)" src="https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&style=for-the-badge&logo=github&label=Dashboard">&nbsp;<img src="https://img.shields.io/github/v/release/nezhahq/agent?color=brightgreen&label=Agent&style=for-the-badge&logo=github">&nbsp;<img src="https://img.shields.io/github/actions/workflow/status/nezhahq/agent/agent.yml?label=Agent%20CI&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/badge/Installer-v0.20.1-brightgreen?style=for-the-badge&logo=linux">
+<img alt="GitHub release (with filter)" src="https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&style=for-the-badge&logo=github&label=Dashboard">&nbsp;<img src="https://img.shields.io/github/v/release/nezhahq/agent?color=brightgreen&label=Agent&style=for-the-badge&logo=github">&nbsp;<img src="https://img.shields.io/github/actions/workflow/status/nezhahq/agent/agent.yml?label=Agent%20CI&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/badge/Installer-v0.20.2-brightgreen?style=for-the-badge&logo=linux">
   <br>
   <br>
   <p>:trollface: <b>Nezha Monitoring: Self-hostable, lightweight, servers and websites monitoring and O&M tool.</b></p>
diff --git a/script/install.sh b/script/install.sh
index ac34d74..410569a 100755
--- a/script/install.sh
+++ b/script/install.sh
@@ -12,7 +12,7 @@ NZ_DASHBOARD_PATH="${NZ_BASE_PATH}/dashboard"
 NZ_AGENT_PATH="${NZ_BASE_PATH}/agent"
 NZ_DASHBOARD_SERVICE="/etc/systemd/system/nezha-dashboard.service"
 NZ_DASHBOARD_SERVICERC="/etc/init.d/nezha-dashboard"
-NZ_VERSION="v0.20.1"
+NZ_VERSION="v0.20.2"
 
 red='\033[0;31m'
 green='\033[0;32m'
@@ -538,6 +538,10 @@ modify_dashboard_config() {
         echo "正在下载服务文件"
         if [ "$os_alpine" != 1 ]; then
             _download="sudo wget -t 2 -T 60 -O $NZ_DASHBOARD_SERVICE https://${GITHUB_RAW_URL}/script/nezha-dashboard.service >/dev/null 2>&1"
+            if ! eval "$_download"; then
+                err "文件下载失败，请检查本机能否连接 ${GITHUB_RAW_URL}"
+                return 0
+            fi
         else
             _download="sudo wget -t 2 -T 60 -O $NZ_DASHBOARD_SERVICERC https://${GITHUB_RAW_URL}/script/nezha-dashboard >/dev/null 2>&1"
             if ! eval "$_download"; then
@@ -823,7 +827,7 @@ show_usage() {
 }
 
 show_menu() {
-    echo "
+    printf "
     ${green}哪吒监控管理脚本${plain} ${red}${NZ_VERSION}${plain}
     --- https://github.com/naiba/nezha ---
     ${green}1.${plain}  安装面板端
@@ -844,7 +848,7 @@ show_menu() {
     ————————————————-
     ${green}0.${plain}  退出脚本
     "
-    printf "请输入选择 [0-13]: " && read -r num
+    echo && printf "请输入选择 [0-13]: " && read -r num
     case "${num}" in
         0)
             exit 0
diff --git a/script/install_en.sh b/script/install_en.sh
index e6611f9..54d24c4 100755
--- a/script/install_en.sh
+++ b/script/install_en.sh
@@ -12,7 +12,7 @@ NZ_DASHBOARD_PATH="${NZ_BASE_PATH}/dashboard"
 NZ_AGENT_PATH="${NZ_BASE_PATH}/agent"
 NZ_DASHBOARD_SERVICE="/etc/systemd/system/nezha-dashboard.service"
 NZ_DASHBOARD_SERVICERC="/etc/init.d/nezha-dashboard"
-NZ_VERSION="v0.20.1"
+NZ_VERSION="v0.20.2"
 
 red='\033[0;31m'
 green='\033[0;32m'
@@ -537,6 +537,10 @@ modify_dashboard_config() {
         echo "Downloading service file"
         if [ "$os_alpine" != 1 ]; then
             _download="sudo wget -t 2 -T 60 -O $NZ_DASHBOARD_SERVICE https://${GITHUB_RAW_URL}/script/nezha-dashboard.service >/dev/null 2>&1"
+            if ! eval "$_download"; then
+                err "File failed to get, please check if the network can link ${GITHUB_RAW_URL}"
+                return 0
+            fi
         else
             _download="sudo wget -t 2 -T 60 -O $NZ_DASHBOARD_SERVICERC https://${GITHUB_RAW_URL}/script/nezha-dashboard >/dev/null 2>&1"
             if ! eval "$_download"; then