diff --git a/requirements.txt b/requirements.txt
index 2c577aa..b4fba25 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,7 @@ deepagents
 langchain>=1.2.10
 langchain-openai>=0.3.0
 langgraph>=0.2.0
-python-dotenv
+langchain-core>=0.2.0
 langchain-chroma
-chromadb
\ No newline at end of file
+chromadb
+python-dotenv
\ No newline at end of file