diff --git a/pyproject.toml b/pyproject.toml
index 78bd78773..b8db368f9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ assemblyai = [ "assemblyai~=0.37.0" ]
 aws = [ "boto3~=1.37.16", "websockets~=13.1" ]
 aws-nova-sonic = [ "aws_sdk_bedrock_runtime~=0.0.2" ]
 azure = [ "azure-cognitiveservices-speech~=1.42.0"]
-cartesia = [ "cartesia~=1.4.0", "websockets~=13.1" ]
+cartesia = [ "cartesia~=2.0.3", "websockets~=13.1" ]
 cerebras = []
 deepseek = []
 daily = [ "daily-python~=0.18.2" ]
diff --git a/src/pipecat/services/cartesia/tts.py b/src/pipecat/services/cartesia/tts.py
index 39f577ec3..92762683d 100644
--- a/src/pipecat/services/cartesia/tts.py
+++ b/src/pipecat/services/cartesia/tts.py
@@ -84,7 +84,7 @@ class CartesiaTTSService(AudioContextWordTTSService):
         *,
         api_key: str,
         voice_id: str,
-        cartesia_version: str = "2024-06-10",
+        cartesia_version: str = "2025-04-16",
         url: str = "wss://api.cartesia.ai/tts/websocket",
         model: str = "sonic-2",
         sample_rate: Optional[int] = None,