Update app.py

app.py

@@ -3,7 +3,7 @@ from PyPDF2 import PdfReader
 from langchain_text_splitters import RecursiveCharacterTextSplitter
 from langchain_huggingface import HuggingFaceEmbeddings, HuggingFacePipeline
 from langchain_community.vectorstores import FAISS
-from langchain.prompts import PromptTemplate
+from langchain_core.prompts import PromptTemplate
 from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline
 import torch
 import time