diff --git a/tests/Unit/InvoiceTest.php b/tests/Unit/InvoiceTest.php
index 9c24d585d..f7aec7ea8 100644
--- a/tests/Unit/InvoiceTest.php
+++ b/tests/Unit/InvoiceTest.php
@@ -4,10 +4,10 @@
 
 use Mockery as m;
 use Carbon\Carbon;
+use Stripe\Discount;
 use Carbon\CarbonTimeZone;
 use Laravel\Cashier\Invoice;
 use PHPUnit\Framework\TestCase;
-use Stripe\Discount;
 use Stripe\Invoice as StripeInvoice;
 use Laravel\Cashier\Tests\Fixtures\User;