diff --git a/www/index.php b/www/index.php
index e22f567c8ac287db49ebd94d49897c7db45a04b5..73ff5f0b3ea8ab6b42af18d55f5a3896a44ee444 100644
--- a/www/index.php
+++ b/www/index.php
@@ -4,7 +4,7 @@ require_once dirname(__FILE__).'/../config.sample.php';
 
 UNL_Templates::setCachingService(new UNL_Templates_CachingService_Null());
 
-UNL_Templates::$options['version'] = 3;
+UNL_Templates::$options['version'] = 3.1;
 
 $template = 'Fixed';