diff --git a/htdocs/filefunc.inc.php b/htdocs/filefunc.inc.php
index 34cc3b93558..aa1d1fc72f9 100755
--- a/htdocs/filefunc.inc.php
+++ b/htdocs/filefunc.inc.php
@@ -31,7 +31,7 @@
  *  \version    $Id$
  */
 
-define('DOL_VERSION','3.0.0-beta');	// Also defined in htdocs/install/inc.php (Ex: x.y.z-alpha, x.y.z)
+define('DOL_VERSION','3.1.0-alpha');	// Also defined in htdocs/install/inc.php (Ex: x.y.z-alpha, x.y.z)
 define('EURO',chr(128));
 
 // Definition des constantes syslog
diff --git a/htdocs/install/inc.php b/htdocs/install/inc.php
index 843c14b1b30..57cd16177ce 100644
--- a/htdocs/install/inc.php
+++ b/htdocs/install/inc.php
@@ -25,7 +25,7 @@
  *		\version    $Id$
  */
 
-define('DOL_VERSION','3.0.0-beta');	// Also defined in htdocs/master.inc.php (Ex: x.y.z-alpha, x.y.z)
+define('DOL_VERSION','3.1.0-alpha');	// Also defined in htdocs/master.inc.php (Ex: x.y.z-alpha, x.y.z)
 
 require_once('../core/class/translate.class.php');
 require_once('../lib/functions.lib.php');