diff --git a/LLM/rag/requirements.txt b/LLM/rag/requirements.txt
index 7c43110..02cb355 100644
--- a/LLM/rag/requirements.txt
+++ b/LLM/rag/requirements.txt
@@ -1,12 +1,12 @@
 langchain==0.3.27
 langchain-community==0.3.27
-langchain-core==1.2.16
+langchain-core==1.2.11
 langchain-huggingface==0.1.2
 huggingface-hub>=0.30.0
 sentence-transformers==3.4.1
 chromadb==0.6.3
 transformers==4.57.6
-pypdf==6.7.5
+pypdf==6.7.4
 torch==2.9.1
 langchain-chroma==0.2.2
 beautifulsoup4==4.13.3
\ No newline at end of file