Update app.py

app.py

@@ -4,10 +4,10 @@ import threading
 import shutil
 from pathlib import Path
 import gradio as gr
-from langchain.document_loaders import PyPDFLoader
+from langchain_community.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain.embeddings import HuggingFaceEmbeddings
-from langchain.vectorstores import FAISS
+from langchain_community.vectorstores import FAISS
 from langchain.chains import ConversationalRetrievalChain, LLMChain
 from langchain.memory import ConversationBufferMemory
 from langchain_groq import ChatGroq