diff --git a/CHANGELOG.md b/CHANGELOG.md
index 130547ef6f..ac3ede22e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 - Prevent overriding of theme's default toolbar settings mistakenly [#4120](https://github.com/quilljs/quill/pull/4120)
 - Improve typings for methods that return a Delta [#4136](https://github.com/quilljs/quill/pull/4136)
+- Fix toolbar icons for h3-h6 [#4131](https://github.com/quilljs/quill/pull/4131)
 
 # 2.0.0