Update app.py

app.py

@@ -8,7 +8,11 @@ import uvicorn
 app = FastAPI()
 
 # Initialize tokenizer
-tokenizer = AutoTokenizer.from_pretrained("Xenova/multi-qa-mpnet-base-dot-v1")
+tokenizer = AutoTokenizer.from_pretrained(
+    "Xenova/multi-qa-mpnet-base-dot-v1",
+    use_fast=True,
+    legacy=False
+)
 
 # Load ONNX model
 session = InferenceSession("model.onnx")