diff --git a/app/Services/Business/KuaiTuanTuan/Groups.php b/app/Services/Business/KuaiTuanTuan/Groups.php
index 3e1698d..845f4d4 100644
--- a/app/Services/Business/KuaiTuanTuan/Groups.php
+++ b/app/Services/Business/KuaiTuanTuan/Groups.php
@@ -33,10 +33,10 @@ class Groups
             ];
         }
         $appendParams = [
-            'end_time' => (int)$group['end_time'],
+            'end_time' => $group->getOriginal('end_time'),
             'goods_list' => json_encode([$goodsSkus]),
             'is_save_preview' => $group['is_save_preview'],
-            'start_time' => (int)$group['start_time'],
+            'start_time' => $group->getOriginal('start_time'),
             'title' => $group['title'],
         ];