diff --git a/htdocs/filefunc.inc.php b/htdocs/filefunc.inc.php
index b9a7819413f..b97721f2108 100644
--- a/htdocs/filefunc.inc.php
+++ b/htdocs/filefunc.inc.php
@@ -31,7 +31,7 @@
  */
 
 if (! defined('DOL_APPLICATION_TITLE')) define('DOL_APPLICATION_TITLE','Dolibarr');
-if (! defined('DOL_VERSION')) define('DOL_VERSION','3.9.0-beta');
+if (! defined('DOL_VERSION')) define('DOL_VERSION','4.0.0-beta');
 
 if (! defined('EURO')) define('EURO',chr(128));