diff --git a/app/Models/Activity.php b/app/Models/Activity.php
index 304ddf0..6ed7d4e 100644
--- a/app/Models/Activity.php
+++ b/app/Models/Activity.php
@@ -108,7 +108,9 @@ class Activity extends Model
         if ($this->channel == self::CHANNEL_UNION) {
             $code = '66406' . date('ymdHi') . mt_rand(10000, 99999);
         } else {
-            $code = 'YSD' . substr(date('ymd'), 1) . mt_rand(100000000, 999999999);
+            //            $code = 'YSD' . substr(date('ymd'), 1) . mt_rand(100000000, 999999999);
+            $code = 'YSD' . substr(date('ymdH'), 1) . mt_rand(10000, 99999);
+
         }
 
         $exists = ActivityCoupon::where('code', $code)->exists();