Update app.py

app.py

@@ -64,7 +64,7 @@ def load_document(file: NamedTemporaryFile, parser: str = "llamaparse") -> List[
         raise ValueError("Invalid parser specified. Use 'pypdf' or 'llamaparse'.")
 
 def get_embeddings():
-    return HuggingFaceEmbeddings(model_name="sentence-transformers/all-mpnet-base-v2")
+    return HuggingFaceEmbeddings(model_name="sentence-transformers/stsb-roberta-large")
 
 def update_vectors(files, parser):
     global uploaded_documents