Fix langchain dependency for HF Space

app.py

@@ -16,6 +16,7 @@ from tqdm import tqdm
 import re
 from dotenv import load_dotenv
 import os
+from huggingface_hub import hf_hub_download
 
 
 st.set_page_config(

requirements.txt

@@ -6,5 +6,5 @@ google-generativeai==0.3.2
 numpy==1.24.3
 pandas==2.0.3
 tqdm==4.66.1
-huggingface-hub>=0.16.4,<1.0.0
 gradio
+huggingface-hub==0.15.1