diff --git a/config/mail.php b/config/mail.php
index df6df69..8a3f3fd 100644
--- a/config/mail.php
+++ b/config/mail.php
@@ -34,12 +34,11 @@ return [
     */
 
     'mailers' => [
-        'smtp' => [
-            'transport' => 'smtp',
+        'transport' => 'smtp',
     'url' => null,
-    'host' => env('MAIL_HOST', 'smtp.exmail.qq.com'),
-    'port' => (int) env('MAIL_PORT', 465),
-    'encryption' => env('MAIL_ENCRYPTION', 'ssl'),
+    'host' => 'smtp.exmail.qq.com',
+    'port' => 465,
+    'encryption' => 'ssl',
     'username' => env('MAIL_USERNAME'),
     'password' => env('MAIL_PASSWORD'),
     'timeout' => null,