diff --git a/util/request.js b/util/request.js
index d93c946..db2af4f 100644
--- a/util/request.js
+++ b/util/request.js
@@ -47,7 +47,7 @@ const osMap = {
     channel: 'xiaomi',
   },
   iphone: {
-    os: 'iOS',
+    os: 'iPhone OS',
     appver: '9.0.90',
     osver: '16.2',
     channel: 'distribution',