diff --git a/include/constants.php b/include/constants.php
index cf102f96a..c10bc4bf2 100644
--- a/include/constants.php
+++ b/include/constants.php
@@ -7,7 +7,7 @@
 // +-----------------------------------------------------------------------+
 
 // Default settings
-define('PHPWG_VERSION', '15.5.0');
+define('PHPWG_VERSION', '15.6.0');
 define('PHPWG_DEFAULT_LANGUAGE', 'en_UK');
 
 // this constant is only used in the upgrade process, the true default theme