diff --git a/README.md b/README.md
index cc4dbd9..740c115 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@
 ### 一键安装
 
 ```
-curl -fsSLk https://waf-ce.chaitin.cn/release/latest/setup.sh | bash
+bash -c "$(curl -fsSLk https://waf-ce.chaitin.cn/release/latest/setup.sh)"
 ```
 
 > 更多安装方式请参考 <a href="https://waf-ce.chaitin.cn/posts/guide_install">安装雷池</a>
diff --git a/homepage/src/static/md/guide_install.md b/homepage/src/static/md/guide_install.md
index 0b36691..dd4e6bc 100644
--- a/homepage/src/static/md/guide_install.md
+++ b/homepage/src/static/md/guide_install.md
@@ -39,7 +39,7 @@ df -h                    # 查看磁盘信息
 执行以下命令，即可开始安装
 
 ```
-curl -fsSLk https://waf-ce.chaitin.cn/release/latest/setup.sh | bash
+bash -c "$(curl -fsSLk https://waf-ce.chaitin.cn/release/latest/setup.sh)"
 ```
 
 > 如果连接 Docker Hub 网络不稳，导致镜像下载失败，可以采用 [离线安装](#离线安装) 方式
diff --git a/homepage/src/static/md/guide_upgrade.md b/homepage/src/static/md/guide_upgrade.md
index 278ef4a..5e904ff 100644
--- a/homepage/src/static/md/guide_upgrade.md
+++ b/homepage/src/static/md/guide_upgrade.md
@@ -13,7 +13,7 @@ order: 6
 执行以下命令即可进行升级。
 
 ```
-curl -kfLsS https://waf-ce.chaitin.cn/release/latest/upgrade.sh | bash
+bash -c "$(curl -fsSLk https://waf-ce.chaitin.cn/release/latest/upgrade.sh)"
 ```
 
 [可选] 升级成功后, 可以执行以下命令删除旧版本 Docke 镜像, 以释放磁盘空间
diff --git a/upgrade.sh b/upgrade.sh
index 515e383..8dd4b1b 100755
--- a/upgrade.sh
+++ b/upgrade.sh
@@ -137,7 +137,7 @@ fi
 
 compose_path=`$compose_command ls | grep safeline | awk '{print $3}'`
 
-if [[ -z "$compose_path"]]; then
+if [[ -z "$compose_path" ]]; then
     abort "没有正在运行的雷池环境"
 fi