diff --git a/CHANGELOG.md b/CHANGELOG.md
index 88a45e75a..fab8e8204 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,9 @@ _Breaking developer changes, which may affect downstream projects or sites that
 [@xxxx]: https://github.com/xxxx
 -->
 
+# Unreleased
+
+* When typing an invalid unit into the Speed Limit or Max Height field, revert to the previous unit ([#9110])
 
 # 2.21.0
 ##### 2022-Jun-03