diff --git a/control b/control
index fbb6e3abec39f2c316b26d486585419b787c12c4..c1f267457d7c7019639c19e3050ab810e0a5a6d7 100755
--- a/control
+++ b/control
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # release version
-version=2.3.0
+version=2.4.0
 
 CWD=$(cd $(dirname $0)/; pwd)
 cd $CWD
diff --git a/src/modules/monapi/http/middleware/authorization.go b/src/modules/monapi/http/middleware/authorization.go
index 8a34fcebb5364ecdf7fe75664e4fe3fda423aca5..fd1f7e214259b9b4a08c287748e5246e73bbb1fc 100644
--- a/src/modules/monapi/http/middleware/authorization.go
+++ b/src/modules/monapi/http/middleware/authorization.go
@@ -70,13 +70,11 @@ func headerUser(c *gin.Context) string {
 	return pair[0]
 }
 
-const internalToken = "monapi-builtin-token"
-
 // CheckHeaderToken check thirdparty x-srv-token
 func CheckHeaderToken() gin.HandlerFunc {
 	return func(c *gin.Context) {
 		token := c.GetHeader("x-srv-token")
-		if token != internalToken && !slice.ContainsString(config.Get().Tokens, token) {
+		if !slice.ContainsString(config.Get().Tokens, token) {
 			errors.Bomb("token[%s] invalid", token)
 		}
 		c.Next()