diff --git a/src/pipecat/services/hume/tts.py b/src/pipecat/services/hume/tts.py
index 7014e73fb..94c71bd0a 100644
--- a/src/pipecat/services/hume/tts.py
+++ b/src/pipecat/services/hume/tts.py
@@ -188,6 +188,7 @@ class HumeTTSService(TTSService):
                 utterances=[utterance],
                 format=pcm_fmt,
                 instant_mode=True,
+                version="2",
             ):
                 audio_b64 = getattr(chunk, "audio", None)
                 if not audio_b64: