One way I found was editing the file meta.
You find it when you pick the file directly eg for one of my addons it would be
https://www.curseforge.com/wow/addon.../files/2732803
there you find an edit option that allows to set the versions
https://www.curseforge.com/project/3...s/2732803/edit
for your addon it should be this
https://www.curseforge.com/wow/addon.../files/2744775