diff --git a/database/migrations/2022_04_06_112225_add_bargain_to_orders_table.php b/database/migrations/2022_04_06_112225_add_bargain_to_orders_table.php
index 31b56789..d0ae369e 100644
--- a/database/migrations/2022_04_06_112225_add_bargain_to_orders_table.php
+++ b/database/migrations/2022_04_06_112225_add_bargain_to_orders_table.php
@@ -15,7 +15,7 @@ class AddBargainToOrdersTable extends Migration
     {
         Schema::table('orders', function (Blueprint $table) {
             //
-            $table->unsignedBigInteger('bargain_amount')->default(0)->comment('砍价金额');
+            $table->unsignedBigInteger('bargain_amount')->nullable()->default(0)->comment('砍价金额');
             // $table->unsignedBigInteger('bargain_order_id')->nullable()->comment('关联砍价单ID');
         });
     }