diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7c6a7d..cf252f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Changed
+- Moved `dimensions` field from the Position class to the `ImageContent` class according to changes in AMP v2.16.0 API changes.
 
 ## [1.3.0] - 2024-09-19
 ### Added