diff --git a/CHANGELOG.md b/CHANGELOG.md
index d31a76c75..d28d9faf0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Fixed an issue in `LiveKitTransport` where empty `AudioRawFrame`s were pushed
   down the pipeline. This resulted in warnings by the STT processor.
+- Fixed PiperTTSService to send text as a JSON object in the request body,
+  resolving compatibility with Piper's HTTP API.  
 
 ## [0.0.77] - 2025-07-31