diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8200885b..49f0d5bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@
 - [Docs] Fixed typo in Alerta docs with incorrect number of seconds in a day. - @jertel
 - Update GitHub actions to avoid running publish workflows on forked branches. - @jertel
 - Rewrite `_find_es_dict_by_key` per [discussion #1450](https://github.com/jertel/elastalert2/discussions/1450) for fieldnames literally ending in `.keyword` [#1459](https://github.com/jertel/elastalert2/pull/1459) - @jmacdone @jertel
+- [IRIS] Fixed NoneType error raised in issue [#1457](https://github.com/jertel/elastalert2/issues/1457) - [#1533](https://github.com/jertel/elastalert2/pull/1533)
 
 # 2.18.0