diff --git a/app/Domains/Company/Http/Controllers/OrderController.php b/app/Domains/Company/Http/Controllers/OrderController.php
index ee8975a0..e969e946 100644
--- a/app/Domains/Company/Http/Controllers/OrderController.php
+++ b/app/Domains/Company/Http/Controllers/OrderController.php
@@ -65,8 +65,8 @@ class OrderController extends Controller
             return err('没有更多数据');
         }
 
-        if ($res->last()) {
-            $order_at = Carbon::parse($res->last()->order_at);
+        if ($last = $res->last()) {
+            $order_at = Carbon::parse($last['order_at']);
             $conditions['starttime'] = $order_at->copy()->startOfMonth()->startOfDay()->format('Y-m-d H:i:s');
             $conditions['endtime'] = $order_at->copy()->endOfMonth()->endOfDay()->format('Y-m-d H:i:s');
         }