How do I update my 2010 MacBook Pro to a newer update

macOS High Sierra - Technical Specifications

General Requirements

• OS X 10.8 or later
• 2GB of memory
• 14.3GB of available storage to perform upgrade*
• Some features require an Apple ID; terms apply.
• Some features require a compatible Internet service provider; fees may apply.

Mac Hardware Requirements

For details about your Mac model, click the Apple icon at the top left of your screen, choose About This Mac. These Mac models are compatible with macOS High Sierra:

• MacBook (Late 2009 or newer)
• MacBook Pro (Mid 2010 or newer)
• MacBook Air (Late 2010 or newer)
• Mac mini (Mid 2010 or newer)
• iMac (Late 2009 or newer)
• Mac Pro (Mid 2010 or newer)

Don't use FireFox for these links…

macOS High Sierra - Technical Specifications

https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=1

You can upgrade to High Sierra 10.13.6.

See: How to get old versions of macOS - Apple Support

It doesn't ask you to open in the Appstore?

See if you can try it in this browser, it's Chrome Browser without google & without Ads...

https://brave.com/

https://support.brave.com/hc/en-us/articles/360021357112-What-are-the-system-requirements-to-install-Brave-

Oh wait, are you trying to get it on a newer Mac that won't run it?