diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5de2556..204ac52 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
+## [v2.12.6](https://github.com/tencentyun/cos-nodejs-sdk-v5/compare/v2.12.5...v2.12.6) - 2023-12-05
+
+feat
+-  pic-operations加入签名计算
+
+### Merged
+
+- feat: pic-operations加入签名计算 [`#195`](https://github.com/tencentyun/cos-nodejs-sdk-v5/pull/195)
+
+### Commits
+
+- Updated CHANGELOG.md [`0222e90`](https://github.com/tencentyun/cos-nodejs-sdk-v5/commit/0222e904edaf8022d8222502c418a01a9c2d4f4f)
+- fix: 优化d.ts [`735ab44`](https://github.com/tencentyun/cos-nodejs-sdk-v5/commit/735ab44a03b8fd948ca3a0830945256b2ca06fc7)
+
 ## [v2.12.5](https://github.com/tencentyun/cos-nodejs-sdk-v5/compare/v2.12.4...v2.12.5) - 2023-10-24
 
 fix
@@ -465,8 +479,6 @@ fix: clone bug
 
 ## [v2.9.19](https://github.com/tencentyun/cos-nodejs-sdk-v5/compare/v2.9.18...v2.9.19) - 2021-06-11
 
-- 新增高级上传接口
-
 ### Merged
 
 - feat：新增高级上传接口 [`#107`](https://github.com/tencentyun/cos-nodejs-sdk-v5/pull/107)