diff --git a/setup/inc/class.setup.inc.php b/setup/inc/class.setup.inc.php
index 4ebaa8fb8f..bd77b8528a 100644
--- a/setup/inc/class.setup.inc.php
+++ b/setup/inc/class.setup.inc.php
@@ -73,7 +73,7 @@ class setup
 	 *
 	 * @var string
 	 */
-	var $recommended_php_version = '5.3+';
+	var $recommended_php_version = '5.5';
 
 	function setup($html=False, $translation=False)
 	{