[aur-general] How do I show a AUR Rebuild as a newer build?

Good morning All, I understand that there are 3 version control tags in the PKGBUILD file. pkgver - The Actual Package version pkgrel - The Arch modification/release count - for changes to the patches, install file's. epoch - Special version control number. If I need to rebuild a package due to dependancy rebuilds/changes how do I mark the new package as newer? Do I increase the epoch? Or is there another way? Thanks Macca