Update app.py

app.py

@@ -1,5 +1,5 @@
 import langchain
-from pydantic import BaseModel, root_validator
+from pydantic import BaseModel, model_validator
 from langchain.embeddings.openai import OpenAIEmbeddings
 # from langchain.vectorstores import Chroma
 from langchain.vectorstores import FAISS
@@ -16,7 +16,7 @@ import os
 import streamlit as st
 from streamlit_chat import message
 
-@root_validator(pre=False, skip_on_failure=True)
+@model_validator(pre=False, skip_on_failure=True)
 st.title("Welcome to ExamPrepBot")
 
 if 'responses' not in st.session_state: