Update requirements.txt

requirements.txt

@@ -1,20 +1,18 @@
-# Sentence Embeddings
-sentence-transformers==2.2.2
+# Sentence Embedding
+sentence-transformers==2.7.0  # Compatible with huggingface-hub>=0.19
 
-# Required version due to deprecated cached_download
-huggingface-hub==0.16.4
-
-# Transformers for model loading
+# Transformers and hub
 transformers==4.39.3
+huggingface-hub>=0.19.4
 
-# Vector store
+# FAISS vector search
 faiss-cpu
 
 # LangChain for document Q&A
 langchain==0.0.196
 
-# UI framework
+# Gradio UI
 gradio==4.17.0
 
-# Torch backend (tuned for Spaces)
+# Torch for model backend
 torch>=2.1.0