diff --git a/changelog.md b/changelog.md
index 6e5dbd2a..6db055a6 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,10 @@
+## 4.12.2（2022-02-10）
+
+### Bug Fixes
+
+- 修复遍历 Class 时缺少最后一条数据的问题。
+- 修复 AV.Error 类型定义的错误。
+
 ## 4.12.1（2022-02-09）
 
 ### Bug Fixes
diff --git a/package-lock.json b/package-lock.json
index 8e019581..be2246db 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "leancloud-storage",
-  "version": "4.12.1",
+  "version": "4.12.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index f6c599ee..ce8d57da 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "leancloud-storage",
-  "version": "4.12.1",
+  "version": "4.12.2",
   "main": "./dist/node/entry/index.js",
   "description": "LeanCloud JavaScript SDK.",
   "repository": {
diff --git a/src/version.js b/src/version.js
index 0ad16807..abe6a259 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1 +1 @@
-module.exports = '4.12.1';
+module.exports = '4.12.2';