diff --git a/config/catch.php b/config/catch.php
index 31c2fd6..d57f6e3 100644
--- a/config/catch.php
+++ b/config/catch.php
@@ -60,8 +60,8 @@ return [
      *
      */
   'upload' => [
-      'image' => 'filesize:' . 1024 * 5 . '|fileExt:jpg,png,gif,jpeg',
-      'file' => 'filesize:' . 1024 * 10 . '|fileExt:txt,pdf,xlsx,xls,html'
+      'image' => 'fileSize:' . 1024 * 1024 * 5 . '|fileExt:jpg,png,gif,jpeg',
+      'file' => 'fileSize:' . 1024 * 1024 * 10 . '|fileExt:txt,pdf,xlsx,xls,html'
   ]
 
 ];
diff --git a/extend/catcher/base/CatchRequest.php b/extend/catcher/base/CatchRequest.php
index de3269c..6649ee0 100644
--- a/extend/catcher/base/CatchRequest.php
+++ b/extend/catcher/base/CatchRequest.php
@@ -4,7 +4,6 @@ namespace catcher\base;
 use app\Request;
 use catcher\exceptions\FailedException;
 use catcher\exceptions\ValidateFailedException;
-use think\Validate;
 
 class CatchRequest extends Request
 {
@@ -42,7 +41,7 @@ class CatchRequest extends Request
     {
         if (method_exists($this, 'rules')) {
           try {
-            $validate = new Validate();
+            $validate = app('validate');
             // 批量验证
             if ($this->batch) {
               $validate->batch($this->batch);