Changing request url


Hi I use Simple Twitter Connect and as part of api upgade I have been told that “All you have to do is edit the plugin to change “” to “” because they changed the URL of the endpoint…”

When I login to my account and go to my applications. I can see the url field but when I change it there is no ability to save the new value? Can I change it or do I need to create a new application which has the new values stored?