diff --git a/backend/requirements.txt b/backend/requirements.txt
index 8c569536..d3355b5f 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -18,6 +18,7 @@ bcrypt
 
 
 langchain
+langchain-community
 chromadb
 sentence_transformers
 pypdf