diff --git a/requirements.txt b/requirements.txt
index 8f1d810..2e8a189 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 pymongo==4.11.3
-langchain==0.3.25
-langchain-aws==0.2.22
+langchain==1.0.2
+langchain-aws==1.0.0
 langchain-google-genai==2.1.4
 langchain-openai==0.3.16
 langgraph==0.4.2
diff --git a/utils/utils.py b/utils/utils.py
index 7aafa2d..79a17be 100644
--- a/utils/utils.py
+++ b/utils/utils.py
@@ -115,7 +115,7 @@ def set_env(providers: List[str], passkey: str) -> None:
 def get_llm(provider: str):
     if provider == "aws":
         return ChatBedrock(
-            model_id="anthropic.claude-3-5-sonnet-20240620-v1:0",
+            model_id="us.anthropic.claude-sonnet-4-5-20250929-v1:0",
             model_kwargs=dict(temperature=0),
             region_name="us-west-2",
         )