diff --git a/webui.py b/webui.py
index b14b7f61..909bb637 100644
--- a/webui.py
+++ b/webui.py
@@ -1340,4 +1340,5 @@ demo = gr.TabbedInterface(
 """
 )
 
+demo.queue(concurrency_count=1)
 demo.launch()