diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8dd69ecd..fd0b5351 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,11 +6,15 @@ 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).
 
 
-## [0.16.5](https://github.com/scaleapi/nucleus-python-client/releases/tag/v0.16.4) - 2023-10-12
+## [0.16.5](https://github.com/scaleapi/nucleus-python-client/releases/tag/v0.16.5) - 2023-10-30
 
 ### Added
 - Added a `description` to the slice info. 
 
+### Changed
+- Made `skeleton` key optional on `KeypointsAnnotation`. 
+
+
 ## [0.16.4](https://github.com/scaleapi/nucleus-python-client/releases/tag/v0.16.4) - 2023-10-23
 
 ### Added