diff --git a/CHANGELOG.md b/CHANGELOG.md
index 100dd43..49068eb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 * When viewing a Storage Engine, obscure possible passwords in JSON configuration. Fixes UIHAADM-107.
 * When editing a Transformation Step, a button allows "Custom class" to be set to the XML-to-JSON class. Fixes UIHAADM-111.
 * Ability to export failed records as CSV, including summary of errors. Fixes UIHAADM-106.
+* When editing a Transformation Step, validate XSLT. Fixes UIHAADM-109.
 
 ## [2.0.0](https://github.com/folio-org/ui-harvester-admin/tree/v2.0.0) (2023-10-13)