diff --git a/extend/base/admin/service/AdminUpdateServiceBase.php b/extend/base/admin/service/AdminUpdateServiceBase.php
index 0057289..6291ab2 100644
--- a/extend/base/admin/service/AdminUpdateServiceBase.php
+++ b/extend/base/admin/service/AdminUpdateServiceBase.php
@@ -375,6 +375,16 @@ class AdminUpdateServiceBase
             }
         }
 
+        $required_file = [
+            'think'
+        ];
+
+        foreach ($required_file as $file) {
+            if($file == $file_path){
+                return false;
+            }
+        }
+
         // 如果file_path不存在目录分隔符，则是可选更新的文件（根目录下的文件）
         if (strpos($file_path, '/') === false) {
             return true;