Is there a way to get prices from an external site?

I'm building on online store for a cannabis company, and certain laws and regulations are presenting me with unique challenges. For example, we aren't allowed to directly sell cannabis products on our site, so I've made our "add to cart" buttons link to the BC Cannabis website instead of adding the item to the cart.

My next challenge is to hopefully set up the squarespace store pages to automatically update the product prices when they change on the government website, in order to save time and prevent miscommunications that might frustrate customers.

Does anybody have any insight into how to accomplish this, and/or whether it can be done at all?