diff --git a/README.md b/README.md
index e6fbb16..1c20e39 100644
--- a/README.md
+++ b/README.md
@@ -127,7 +127,7 @@ or
 pnpm serve
 ```
 
-This will start a local server and serve the widget at `http://localhost:33333/index.html`.
+This will start a local server and serve the widget at `http://localhost:3333/index.html`.
 
 ## Deploying the Widget to a CDN