diff --git a/requirements.txt b/requirements.txt
index 1726528..f3fb11c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ flask~=3.1
 flask-sqlalchemy~=3.1
 gunicorn~=23.0
 langchain~=1.2
-langchain-openai~=1.0
+langchain-openai~=1.1
 langgraph~=1.0
 sqlalchemy~=2.0
 -e git+https://github.com/PennChopMicrobiomeProgram/marc_db.git#egg=marc_db