diff --git a/application/admin/controller/api/Update.php b/application/admin/controller/api/Update.php
index bafad5c76..eae199199 100644
--- a/application/admin/controller/api/Update.php
+++ b/application/admin/controller/api/Update.php
@@ -26,10 +26,15 @@ use library\Controller;
 class Update extends Controller
 {
     /**
-     * 基础URL地址
-     * @var string
+     * 访问权限
      */
-    protected $baseUri = 'https://demo.thinkadmin.top';
+    protected function initialize()
+    {
+        $domain = $this->app->request->host(true);
+        $isDemo = is_numeric(stripos($domain, 'thinkadmin.top'));
+        $isLocal = in_array($domain, ['127.0.0.1', 'localhost']);
+        if (!$isLocal && !$isDemo) $this->error('只允许访问本地或官方代码！');
+    }
 
     /**
      * 获取文件列表
diff --git a/composer.json b/composer.json
index 240019021..615ffb807 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "endroid/qr-code": "^1.9",
     "topthink/framework": "5.1.*",
     "zoujingli/ip2region": "^1.0",
-    "zoujingli/think-library": "5.1.*-dev",
+    "zoujingli/think-library": "5.1.x-dev",
     "zoujingli/weopen-developer": "dev-master"
   },
   "repositories": {