diff --git a/markdown_view_plugin/markdown_view_plugin/markdown_view_plugin.py b/markdown_view_plugin/markdown_view_plugin/markdown_view_plugin.py
index b7089bf..f855fa4 100644
--- a/markdown_view_plugin/markdown_view_plugin/markdown_view_plugin.py
+++ b/markdown_view_plugin/markdown_view_plugin/markdown_view_plugin.py
@@ -71,7 +71,7 @@ class MarkdownViewPlugin(AirflowPlugin):
         {
             "app": markdown_fastapi_app,
             "name": "markdown_view_app",  # A unique name for this FastAPI app
-            "app_mount": "/markdown_view_plugin_mount",
+            "url_prefix": "/markdown_view_plugin",  # Required for Airflow 3 FastAPI plugins
         }
     ]
     # Example menu link (optional, can also be configured via Airflow UI settings)