diff --git a/app/admin/controller/AboutUs/DevelopmentHistory.php b/app/admin/controller/AboutUs/DevelopmentHistory.php
index 429654f..53e96fc 100644
--- a/app/admin/controller/AboutUs/DevelopmentHistory.php
+++ b/app/admin/controller/AboutUs/DevelopmentHistory.php
@@ -147,7 +147,7 @@ class DevelopmentHistory extends BaseController
             'development_history_content'
         ])
             ->order('development_history_year', $params['sort'])
-            ->select();
+            ->select()->toArray();
 
         ModelDevelopmentHistory::exportExcel($select);
     }