diff --git a/api/requirements.txt b/api/requirements.txt
index b0bed62..990f133 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -11,7 +11,7 @@ pydantic-settings>=2.1.0
 
 # LangChain & LangGraph (Agentic Framework)
 langchain>=0.1.0
-langchain-openai>=0.0.5
+langchain-openai>=1.3.2
 langgraph>=0.0.20
 langgraph-checkpoint-sqlite>=1.0.0
 langchain-community>=0.4.1