diff --git a/app/api/controller/ContractController.php b/app/api/controller/ContractController.php
index 31c98789..41f99ac3 100644
--- a/app/api/controller/ContractController.php
+++ b/app/api/controller/ContractController.php
@@ -118,7 +118,7 @@ class ContractController extends BaseApiController
         try{
             $update_result = $contract->where('id', $contract['id'])->save($params);
             if(isset($params['cars_info']) && !empty($params['cars_info'])){
-                $cars = json_decode($contract['cars_info'], true);
+                $cars = json_decode($params['cars_info'], true);
                 //更新本地车辆状态
                 $vehicle_result = Vehicle::where('id','in',array_column($cars,'id'))->update(['status'=>1]);
             }