Update app.py

app.py

@@ -4,7 +4,7 @@ import gradio as gr
 from langchain.prompts import PromptTemplate
 from langchain_openai import ChatOpenAI
 from langchain_chroma import Chroma
-from langchain.embeddings import HuggingFaceEmbeddings
+from langchain_community.embeddings import HuggingFaceEmbeddings
 
 # Load embedding model and vector store from persisted DB
 embedding_model = HuggingFaceEmbeddings(model_name="sentence-transformers/all-MiniLM-L6-v2")