Update app.py

app.py

@@ -11,10 +11,10 @@ os.environ['OPENAI_API_KEY'] = os.environ['OPEN_API_KEY']
 st.title("Contracts Summary ")
 import pandas as pd
 
-from langchain.retrievers import BM25Retriever, EnsembleRetriever
+from langchain_community.retrievers import BM25Retriever, EnsembleRetriever
 from langchain.schema import Document
-from langchain.vectorstores import Chroma
-from langchain.embeddings import HuggingFaceEmbeddings
+from langchain_community.vectorstores import Chroma
+from langchain_community.embeddings import HuggingFaceEmbeddings
 import spacy
 # Load the English model from SpaCy
 from spacy_download import load_spacy