diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5699ecc..708afaf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@
 
 ### Unreleased
 
-* Update dependencies ([PR #17 @chenxiaolong], [PR #20 @chenxiaolong])
+* Update dependencies ([PR #17 @chenxiaolong], [PR #20 @chenxiaolong], [PR #21 @chenxiaolong])
 * Fix non-UTF-8 paths not being accepted by custota-tool's `--cert` option on Linux ([PR #18 @chenxiaolong])
 
 ### Version 2.2
@@ -54,3 +54,4 @@
 [PR #17 @chenxiaolong]: https://github.com/chenxiaolong/Custota/pull/17
 [PR #18 @chenxiaolong]: https://github.com/chenxiaolong/Custota/pull/18
 [PR #20 @chenxiaolong]: https://github.com/chenxiaolong/Custota/pull/20
+[PR #21 @chenxiaolong]: https://github.com/chenxiaolong/Custota/pull/21