diff --git a/README.md b/README.md
index 03cd96b..59101af 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 
 ### 上传文件
 
-修改文件上传接口 `admin-api/upload_file`, `admin-api/upload_image`, 返回完整链接
+修改文件上传接口 `admin-api/upload_file`, `admin-api/upload_image`, 返回完整URL
 
 - `app\Admin\Controllers\HomeController.php@upload`
 
diff --git a/config/admin.php b/config/admin.php
index cbcb536..2e70867 100644
--- a/config/admin.php
+++ b/config/admin.php
@@ -56,7 +56,7 @@ return [
     ],
 
     'upload' => [
-        'disk'      => 'public',
+        'disk'      => env('FILESYSTEM_DISK', 'public'),
         // 文件上传目录
         'directory' => [
             'image' => 'images',
@@ -113,7 +113,7 @@ return [
     ],
 
     'database' => [
-        'connection' => env('ADMIN_DB_CONNECTION') ?? env('DB_CONNECTION', 'mysql'),
+        'connection' => env('DB_CONNECTION', 'sqlite'),
     ],
 
     'models' => [