diff --git a/VERSION b/VERSION
index 26d99a283f..d346e2ab7f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.2.1
+5.3
diff --git a/config/config.php b/config/config.php
index e1ee67e064..57b87b4d2b 100644
--- a/config/config.php
+++ b/config/config.php
@@ -17,7 +17,7 @@ if(!function_exists('getWebRoot')){function getWebRoot(){}}
 
 /* Basic settings. */
 $config = new config();
-$config->version      = '5.2.1';             // The version of zentaopms. Don't change it.
+$config->version      = '5.3';             // The version of zentaopms. Don't change it.
 $config->charset      = 'UTF-8';           // The charset of zentaopms.
 $config->cookieLife   = time() + 2592000;  // The cookie life time.
 $config->timezone     = 'Asia/Shanghai';   // The time zone setting, for more see http://www.php.net/manual/en/timezones.php