diff --git a/requirements.txt b/requirements.txt
index 8ca8b76..79c2c10 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ flask-sqlalchemy~=3.1
 gunicorn~=25.0
 langchain~=1.2
 langchain-openai~=1.1
-langgraph~=1.0
+langgraph~=1.1
 sqlalchemy~=2.0
 -e git+https://github.com/PennChopMicrobiomeProgram/marc_db.git#egg=marc_db