diff --git a/BaseObject.php b/BaseObject.php
index 26f4a78a..ad78bda4 100644
--- a/BaseObject.php
+++ b/BaseObject.php
@@ -2,6 +2,10 @@
 
 namespace mdm\admin;
 
+if(!class_exists('yii\base\BaseObject')){
+    class_alias('yii\base\Object', 'yii\base\BaseObject');
+}
+
 /**
  * Description of BaseObject
  *