update 2012 MacBook Pro 13"

BlackKnight024 wrote:

Can I update the 2012 MacBook Pro out of version 10.13.6?

A mid 2012 can run Catalina macOS 10.15.7

The older macOS installer backups on this server:

How to get old versions of macOS - Apple Support

verify you are using the Safari browser to download/initiate the macOS links.