Update app.py

app.py

@@ -41,6 +41,6 @@ with gr.Blocks(title="mT5 id↔md Translator (HF Space API)") as demo:
         [out]
     )
 
-demo.queue(concurrency_count=1, max_size=12)
+demo.queue(concurrency=1, max_size=12)
 if __name__ == "__main__":
     demo.launch()