diff --git a/README.md b/README.md
index 455d7ec..e8593e8 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,7 @@ curl -L https://raw.githubusercontent.com/snail007/goproxy/master/install_auto.s
 下载地址:https://github.com/snail007/goproxy/releases  
 ```shell  
 cd /root/proxy/  
-wget https://github.com/snail007/goproxy/releases/download/v4.1/proxy-linux-amd64.tar.gz  
+wget https://github.com/snail007/goproxy/releases/download/v4.0/proxy-linux-amd64.tar.gz  
 ```  
 #### **2.下载自动安装脚本**  
 ```shell  
diff --git a/install_auto.sh b/install_auto.sh
index 26790e7..631e27c 100755
--- a/install_auto.sh
+++ b/install_auto.sh
@@ -5,7 +5,7 @@ if [ -e /tmp/proxy ]; then
 fi
 mkdir /tmp/proxy
 cd /tmp/proxy
-wget https://github.com/snail007/goproxy/releases/download/v4.1/proxy-linux-amd64.tar.gz
+wget https://github.com/snail007/goproxy/releases/download/v4.0/proxy-linux-amd64.tar.gz
 
 # #install proxy
 tar zxvf proxy-linux-amd64.tar.gz
diff --git a/main.go b/main.go
index 77a063a..0137040 100644
--- a/main.go
+++ b/main.go
@@ -8,7 +8,7 @@ import (
 	"syscall"
 )
 
-const APP_VERSION = "4.1"
+const APP_VERSION = "4.0"
 
 func main() {
 	err := initConfig()
diff --git a/release.sh b/release.sh
index 08e8dda..5d5c283 100755
--- a/release.sh
+++ b/release.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-VER="4.1"
+VER="4.0"
 RELEASE="release-${VER}"
 rm -rf .cert
 mkdir .cert