diff --git a/HISTORY.md b/HISTORY.md
index db45d11..e4c856f 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -5,6 +5,7 @@ https://github.com/josdejong/jsoneditor
 
 ## not yet released, version 4.2.2
 
+- Replaced the PNG icon images with SVG. Thanks @1j01.
 - Fixed #234: Remove dependency on a fork of the `jsonlint` project on github.