Can anyone help with 301 redirects from http to https?

Hi -

I recently moved from squarespace to shopify and I set up 301 redirects. They’re not actually working, though, and I think it’s because my squarespace site was http and shopify is https. Does anyone know how I need to edit the url redirects so they work? I currently have them set up like this:

/old-url → /new-url 301

Thank you!