diff --git a/bucket/wechat-versions.json b/bucket/wechat-versions.json
index 8f9a9d3..d80f6db 100644
--- a/bucket/wechat-versions.json
+++ b/bucket/wechat-versions.json
@@ -1,12 +1,13 @@
 {
-    "version": "3.9.9.35",
+    "version": "3.9.7.29",
     "description": "Archived versions of wechat from https://github.com/tom-snow/wechat-windows-versions/releases, type 'scoop install wechat-versions@<version>' to install a specific version.",
     "homepage": "https://pc.weixin.qq.com/",
     "license": {
         "identifier": "Proprietary",
         "url": "https://www.wechat.com/en/service_terms.html"
     },
-    "url": "https://github.com/tom-snow/wechat-windows-versions/releases/download/v3.9.9.35/WeChatSetup-3.9.9.35.exe#/dl.7z",
+    "url": "https://github.com/tom-snow/wechat-windows-versions/releases/download/3.9.7.29/WeChatSetup-3.9.7.29.exe#/dl.7z",
+    "hash": "bf1f0a79013b1f253ef47a606e20ab636cae80a8aa42c3ab4f01f0b40893a5d0",
     "installer": {
         "script": [
             "Remove-Item \"$dir\\`$*\", \"$dir\\Uninst*\" -Force -Recurse",
@@ -38,6 +39,10 @@
         "regex": "Wechat v([\\d.]+)"
     },
     "autoupdate": {
-        "url": "https://github.com/tom-snow/wechat-windows-versions/releases/download/v$version/WeChatSetup-$version.exe#/dl.7z"
+        "url": "https://github.com/tom-snow/wechat-windows-versions/releases/download/v$version/WeChatSetup-$version.exe#/dl.7z",
+        "hash": {
+            "url": "https://github.com/tom-snow/wechat-windows-versions/releases/tag/v$version",
+            "regex": "Sha256: ([a-fA-F0-9]{64})"
+        }
     }
 }