diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 80d68bf..d4dac4f 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -19,6 +19,7 @@ cachetools = "^5.5.0"
 protobuf = "4.25.4"
 nltk = "^3.9.1"
 jieba = "^0.42.1"
+neo4j = "^5.24.0"
 
 transformers = "^4.43.0"
 
@@ -46,6 +47,7 @@ llama-index-vector-stores-chroma = "^0.2.0"
 llama-index-readers-json = "^0.2.0"
 llama-index-retrievers-bm25 = "^0.3.0"
 llama-index-experimental = "^0.3.0"
+llama-index-graph-stores-neo4j = "^0.3.2"
 
 
 duckduckgo_search = "^6.2.10"