diff --git a/requirements.txt b/requirements.txt
index 7214dfdb8f..0f53e3e69d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ beautifulsoup4==4.14.3
 boto3==1.42.32
 imbalanced-learn==0.14.0
 langchain==1.2.6
-langchain-anthropic==1.3.0
+langchain-anthropic==1.3.1
 langchain-classic==1.0.1
 langchain-community==0.4.1
 langchain-google-genai==4.2.0