diff --git a/requirements.txt b/requirements.txt
index fa76451..b0a127b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 langchain>=1.2.10
 langchain-openai>=1.1.9
+langgraph>=1.0.8
 rich>=13.0.0