diff --git a/v1/ucloud/conf.php b/v1/ucloud/conf.php
index 4565bfd..272aaf6 100644
--- a/v1/ucloud/conf.php
+++ b/v1/ucloud/conf.php
@@ -8,7 +8,8 @@ global $UCLOUD_PRIVATE_KEY;
 $SDK_VER = "1.0.8";
 
 //空间域名后缀,请查看控制台上空间域名再配置此处
-$UCLOUD_PROXY_SUFFIX = '.ufile.ucloud.cn';
+//https://docs.ucloud.cn/storage_cdn/ufile/tools/introduction
+$UCLOUD_PROXY_SUFFIX = '.ufileos.com';    
 
 $UCLOUD_PUBLIC_KEY = 'paste your public key here';
 $UCLOUD_PRIVATE_KEY = 'paste your private key here';