To upgrade your Logo Builder plan, please follow these steps:

1. Sign in to your Dynadot account.
2. Select "My Logos" from the left-side menu bar.
3. Click on the "Upgrade" button next to the Logo Builder you want to upgrade and it will be added to your shopping cart.
4. Click "View Cart", or the shopping cart icon at the top, to go to your shopping cart.
5. Follow the "Checkout" buttons to submit your order.