diff --git a/EdgeCraftRAG/edgecraftrag/requirements.txt b/EdgeCraftRAG/edgecraftrag/requirements.txt
index 6c4b7e4451..4248235b99 100644
--- a/EdgeCraftRAG/edgecraftrag/requirements.txt
+++ b/EdgeCraftRAG/edgecraftrag/requirements.txt
@@ -3,7 +3,7 @@ EbookLib>=0.18
 faiss-cpu>=1.8.0.post1
 html2text>=2025.4.15
 json-repair==0.52.0
-langchain-core==0.3.80
+langchain-core==1.2.11
 langchain-milvus
 langchain-openai
 langgraph==0.6.10