diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd7ff45d4aa05e4f81d72f754e88d52512d0086c..1b9a4b2509029a70a11c9cd2ee259c1dccb33d16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to posterior will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [0.1.1] - 2023-05-15
+### Changed
+- Allow version 6.x for guzzlehttp client lib.
+
 ## [0.1.0] - 2023-05-15
 ### Added
 - Initial version, basic API client only.