diff --git a/bin/upgrade.sh b/bin/upgrade.sh
index d2d6e40..97b3796 100755
--- a/bin/upgrade.sh
+++ b/bin/upgrade.sh
@@ -2,29 +2,74 @@
 echo "Upgrade machete ..."
 echo ""
 
+download_link_filesite="https://git.filesite.io/filesite/machete/archive/master.tar.gz"
+download_link_gitcode="https://gitcode.net/filesite/machete/-/archive/master/machete-master.tar.gz"
+
+
+# 检测域名是否能连接
+# 返回值：0 - 不能连接，1 - 可连接
+detectDomainCanConnect () {
+    domain=$1
+    if [ -z "${domain}" ]; then
+        echo "Usage: detectDomainCanConnect domain"
+        echo ""
+        exit 1
+    fi
+
+    ping_res=`ping -c 3 "${domain}"`
+    if [[ $ping_res == *"100.0% packet loss"* ]]; then
+        return 0
+    fi
+
+    return 1
+}
+
 
 mkdir -p /var/www/downloads
 cd /var/www/downloads/
 rm -f master.tar.gz
 rm -rf machete/
-wget "https://git.filesite.io/filesite/machete/archive/master.tar.gz"
-tar -zxvf master.tar.gz
-rm -f master.tar.gz
-rsync -vruL machete/* /var/www/machete/ \
-    --exclude=www/content/ \
-    --exclude=www/navs/ \
-    --exclude=www/girls/ \
-    --exclude=www/videos/ \
-    --exclude=www/tajian/ \
-    --exclude=runtime/
+
+# 升级machete
+detect_domain="git.filesite.io"
+echo "检测${detect_domain}是否可连接..."
+detectDomainCanConnect "${detect_domain}"
+connect_res=$?
+if [ $connect_res -eq 0 ]; then
+    echo "⚠️⚠️"
+    echo "当前网络无法连接[${detect_domain}]，即将从备用网址下载machete"
+    curl --connect-timeout 15 "${download_link_gitcode}" -o "master.tar.gz"
+else
+    curl --connect-timeout 15 "${download_link_filesite}" -o "master.tar.gz"
+fi
+
+if [ -f "master.tar.gz" ]; then
+
+    tar -zxvf master.tar.gz
+    rm -f master.tar.gz
+    rsync -vruL machete/* /var/www/machete/ \
+        --exclude=www/content/ \
+        --exclude=www/navs/ \
+        --exclude=www/girls/ \
+        --exclude=www/videos/ \
+        --exclude=www/tajian/ \
+        --exclude=runtime/
+
+fi
+
 
 # upgrade admin
 cd /var/www/downloads/
-wget "https://git.filesite.io/wen/jialuomaadmin/archive/master.tar.gz"
-tar -zxvf master.tar.gz
-rm -f master.tar.gz
-rm -rf /var/www/machete/www/admin/
-mv jialuomaadmin/dist/ /var/www/machete/www/admin
+curl --connect-timeout 15 "https://git.filesite.io/wen/jialuomaadmin/archive/master.tar.gz" -o "master.tar.gz"
+
+if [ -f "master.tar.gz" ]; then
+
+    tar -zxvf master.tar.gz
+    rm -f master.tar.gz
+    rm -rf /var/www/machete/www/admin/
+    mv jialuomaadmin/dist/ /var/www/machete/www/admin
+
+fi
 
 echo "Machete upgrade done."
 echo ""