diff --git a/README.md b/README.md
index 4ff5ce0..3bb7cb6 100644
--- a/README.md
+++ b/README.md
@@ -156,7 +156,7 @@ panel_iframe:
   jupyterlab:
     title: JupyterLab
     icon: mdi:flask
-    url: https://addres.to.your.hass.io:8888
+    url: https://addres.to.your.hass.io:7777
 ```
 
 ## Getting a GitHub access token