diff --git a/README.md b/README.md
index 9ed73ec..5ec178f 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [English Version](https://tank-doc.eyeblue.cn/en)
 
-# 蓝眼云盘（3.2.0）
+# 蓝眼云盘（4.0.0.beta）
 [在线Demo](https://tanker.eyeblue.cn) (体验账号： demo 密码：123456)
 
 蓝眼云盘是蓝眼开源系列代表作品之一，致力于打造精致，优雅，简约的云盘。核心功能如下：
diff --git a/build/pack/build.bat b/build/pack/build.bat
index 955c6da..d5b8abd 100644
--- a/build/pack/build.bat
+++ b/build/pack/build.bat
@@ -11,7 +11,7 @@
 @REM prepare the variables.
 
 @REM  version name
-SET VERSION_NAME=tank-3.2.0
+SET VERSION_NAME=tank-4.0.0.beta
 ECHO VERSION_NAME: %VERSION_NAME%
 @REM  golang proxy
 SET GOPROXY=https://goproxy.cn
diff --git a/build/pack/build.sh b/build/pack/build.sh
index 874d5be..4147d7b 100755
--- a/build/pack/build.sh
+++ b/build/pack/build.sh
@@ -10,7 +10,7 @@ set -e
 #prepare the variables.
 
 # version name
-VERSION_NAME=tank-3.2.0
+VERSION_NAME=tank-4.0.0.beta
 echo "VERSION_NAME: ${VERSION_NAME}"
 #  golang proxy
 GOPROXY=https://goproxy.cn
diff --git a/code/core/config.go b/code/core/config.go
index 818de34..1939002 100644
--- a/code/core/config.go
+++ b/code/core/config.go
@@ -11,10 +11,10 @@ const (
 
 	DEFAULT_SERVER_PORT = 6010
 
-	//db table's prefix. tank32_ means current version is tank:3.2.x
-	TABLE_PREFIX = "tank32_"
+	//db table's prefix. tank40_ means current version is tank:4.0.x
+	TABLE_PREFIX = "tank40_"
 
-	VERSION = "3.2.0"
+	VERSION = "4.0.0.beta"
 )
 
 type Config interface {