Updating Infinite SEO sitemap.xml after site transfer

I was working on a development server under a subdomain for a site I'm currently working on.

When I ported it over, Infinite SEO will not update to the new domain address.

So where it was xx.mydomain.com/sitemap.xml

It now needs to be newdomain.com/sitemap.xml, but it still shows the old url from above.

Everything else on the site works fine.

And I cannot for the life of me figure out how to change it. I have uninstalled and reinstalled. Activated and Deactivated.

Any help would be great.