diff --git a/CHANGELOG.md b/CHANGELOG.md
index d4a97762f..a552daed8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added Chinese, Japanese, Korean word timestamp support to
   `CartesiaTTSService`.
 
+- Added `region` parameter to `GladiaSTTService`. Accepted values: eu-west (default), us-west.
+
 ### Changed
 
 - System frames are now queued. Before, system frames could be generated from