update

app.py

@@ -1,7 +1,7 @@
 import chainlit as cl
 from chainlit.playground.providers import ChatOpenAI
 from dotenv import load_dotenv
-from langchain_core.document_loaders import PyMuPDFLoader
+from langchain_community.document_loaders import PyMuPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 import tiktoken
 from langchain.prompts import ChatPromptTemplate

requirements.txt

@@ -3,5 +3,6 @@ cohere==4.37
 openai==1.3.5
 tiktoken==0.5.1
 python-dotenv==1.0.0
-langchain==0.0.354
-langchain_openai
+langchain
+langchain_openai
+langchain-community