diff --git a/app/admin/controller/api/Update.php b/app/admin/controller/api/Update.php
index 10dcd3516..c456c685a 100644
--- a/app/admin/controller/api/Update.php
+++ b/app/admin/controller/api/Update.php
@@ -43,7 +43,7 @@ class Update extends Controller
     {
         $this->file = $this->app->getRootPath() . decode(input('encode', '0'));
         file_exists($this->file) ? $this->success('读取文件成功！', [
-            'format' => 'base64', 'content' => base64_encode(file_get_contents($this->file)),
+            'content' => base64_encode(file_get_contents($this->file)),
         ]) : $this->error('获取文件内容失败！');
     }