Quick Shipping Question

So a buyer bought multiple different items from me. The order is going to be pretty heavy all together and I normally ship my heavy items UPS or Fedex. The listings he bought had USPS ground advantage as the shipping. It was free shipping if that makes a difference. Anyway my question is, will I still be protected by Etsy if I ship UPS or FedEx? I would like to do that because it is both a faster and safer option for the order.