Why isn't the quantity updating at checkout in the Brooklyn theme?

When I try to update the quantity at checkout the quantity value changes, but when I hit check out it just shows quantity of 1. Does anyone know the fix?

I’m using the free theme Brooklyn.

My Shopify store is https://now-join-hands.myshopify.com

Thanks,

Noah

Sorry I just figured it out. You have to select Update Cart before Checkout otherwise the quantity change will not update.