diff --git a/examples/phone-chatbot-daily-twilio-sip/README.md b/examples/phone-chatbot-daily-twilio-sip/README.md
index ca45f02eb..21dea417e 100644
--- a/examples/phone-chatbot-daily-twilio-sip/README.md
+++ b/examples/phone-chatbot-daily-twilio-sip/README.md
@@ -18,7 +18,7 @@ This project demonstrates how to create a voice bot that can receive phone calls
 - A Daily account with an API key
 - A Twilio account with a phone number that supports voice
 - OpenAI API key for the bot's intelligence
-- ElevenLabs API key for text-to-speech (optional but recommended)
+- Cartesia API key for text-to-speech
 
 ## Setup