diff --git a/pyproject.toml b/pyproject.toml
index f9ecec477..79026ddab 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ Source = "https://github.com/pipecat-ai/pipecat"
 Website = "https://pipecat.ai"
 
 [project.optional-dependencies]
-anthropic = [ "anthropic~=0.34.0" ]
+anthropic = [ "anthropic~=0.40.0" ]
 assemblyai = [ "assemblyai~=0.34.0" ]
 aws = [ "boto3~=1.35.27" ]
 azure = [ "azure-cognitiveservices-speech~=1.40.0", "openai~=1.50.2" ]