diff --git a/config/billing.php b/config/billing.php
index ee53989..69f3a44 100644
--- a/config/billing.php
+++ b/config/billing.php
@@ -1,7 +1,6 @@
 <?php
 
 return [
-    'drops_rate' => 1000,
     // 提成
     'commission' => 0.1,
 ];