diff --git a/update.json b/update.json
index 6383ed5..99839c3 100644
--- a/update.json
+++ b/update.json
@@ -1,6 +1,6 @@
 {
-  "versionCode": 20,
-  "versionName": "1.7.0",
-  "apkUrl": "http://124.222.97.212:8443/attachments/17698b23-12a7-49c1-a22f-da0d479be0ef",
-  "notes": "修复 Trae 鉴权头字面量 bug + SOLO 协议头补全，请测试 Trae CN"
+  "versionCode": 21,
+  "versionName": "1.7.1",
+  "apkUrl": "http://124.222.97.212:8443/attachments/d5800fcc-ccc0-4033-8357-59f4f03ce104",
+  "notes": "更新下载复用：同版本已下载不再重复下载；安装失败可一键重试安装"
 }