High Sierra Upgrade

When using this link https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12 for high sierra it says that the file is damaged and cannot be downloaded. Is there another link or way to download high sierra?

I have Sierra and am trying to get to where I can download the latest version of OS. I am unable to bypass High Sierra for a newer version

I have a macbook pro late 2011 version.