diff --git a/fastapi_server/requirements.txt b/fastapi_server/requirements.txt
index c7f0a7e..0449f53 100644
--- a/fastapi_server/requirements.txt
+++ b/fastapi_server/requirements.txt
@@ -7,6 +7,7 @@ langchain==1.0
 langchain-core>=0.1.0
 langchain-community
 langchain-openai
+openai>=1.0.0
 langchain-mcp-adapters
 langgraph>=0.0.40
 tyro>=0.7.0