diff --git a/change_log.txt b/change_log.txt
index e0c6cc47..6935e1cf 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -1,5 +1,8 @@
  ===== 3.1.30-dev ===== (xx.xx.xx)
- 02.05.2026
+ 07.05.2016
+  -bugfix Only variables should be assigned by reference https://github.com/smarty-php/smarty/issues/227
+
+ 02.05.2016
   - enhancement {block} tag names can now be variable https://github.com/smarty-php/smarty/issues/221
 
  01.05.2016
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index 9ad78f0e..03768cb2 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -121,7 +121,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '3.1.30-dev/66';
+    const SMARTY_VERSION = '3.1.30-dev/67';
 
     /**
      * define variable scopes
diff --git a/libs/plugins/shared.mb_str_replace.php b/libs/plugins/shared.mb_str_replace.php
index 7fb779f4..0c3ffe25 100644
--- a/libs/plugins/shared.mb_str_replace.php
+++ b/libs/plugins/shared.mb_str_replace.php
@@ -26,7 +26,7 @@ if (!function_exists('smarty_mb_str_replace')) {
         if (is_array($subject)) {
             // call mb_replace for each single string in $subject
             foreach ($subject as &$string) {
-                $string = &smarty_mb_str_replace($search, $replace, $string, $c);
+                $string = smarty_mb_str_replace($search, $replace, $string, $c);
                 $count += $c;
             }
         } elseif (is_array($search)) {