diff --git a/ChatApp/app.py b/ChatApp/app.py
index d0f7d0f..392c46a 100755
--- a/ChatApp/app.py
+++ b/ChatApp/app.py
@@ -298,4 +298,5 @@ def interface_retry(*args):
 
 demo.title = "Llama Chat UI"
 
-demo.queue(concurrency_count=1).launch()
+# The parameter `concurrency_count` is deprecated and has no effect (will be removed in a future version). 
+demo.queue(default_concurrency_limit=1).launch()