diff --git a/app/Model/Model.php b/app/Model/Model.php
index 82ebdb5..f606652 100644
--- a/app/Model/Model.php
+++ b/app/Model/Model.php
@@ -18,4 +18,5 @@ use Hyperf\ModelCache\CacheableInterface;
 abstract class Model extends BaseModel implements CacheableInterface
 {
     use Cacheable;
+    protected $dateFormat = 'U';
 }