diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba534987a7340185904c99ce5bd7ac03d823d4c3..b5a0e729877076c966b2ffa207122ea46032b2bf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added ###
 
 * Official support for Python 3.13
+* Optional `realm` argument for `linkahead_admin.py set_user_password`
+  which defaults to `None`, i.e., the server's default realm.
 
 ### Changed ###