diff --git a/app/Admin/Controllers/Activity/CouponController.php b/app/Admin/Controllers/Activity/CouponController.php
index 3cdfde3..a6774c4 100644
--- a/app/Admin/Controllers/Activity/CouponController.php
+++ b/app/Admin/Controllers/Activity/CouponController.php
@@ -37,6 +37,8 @@ class CouponController extends AdminController
                     });
                 }, '网点名称', 'outlet_name');
 
+                $filter->between('created_at', '发券时间')->datetime();
+
             });
             $filter->column(1 / 2, function ($filter) {
                 $filter->like('code', '卡券编号');