diff --git a/requirements.txt b/requirements.txt
index 69f2d83..2222073 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
-langchain==1.2.10
-langchain-openai==1.1.9
+langchain-openai>=0.3.0
+langgraph>=0.2.0
+langchain-core>=0.3.0
 python-dotenv>=1.0.0