diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 7c2863d..afbb38c 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -13,6 +13,7 @@ Changelog
 - Fix #423: Fix rendering of attached files on new reply by PushService
 - Enh #424: Allow sending a message with attached files only, such as an image
 - Enh #426: Reduce translation message categories
+- Fix #428: Fixed observer missing parameter 
 
 3.2.2 (July 9, 2024)
 --------------------