diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6d7b6f72e..3a0524e29 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to **Pipecat** will be documented in this file.
 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]
+
+### Added
+
+- Added `default_headers` parameter to `BaseOpenAILLMService` constructor.
+
 ## [0.0.59] - 2025-03-20
 
 ### Added