Uploading New Version of file using API with Powershell

I am trying to write a script that uploads a new version of a file that updates daily, cant use Box Sync, but I am having trouble making a script that does that.

I can already upload, but am having problems doing the new version.

I tried to use this https://community.box.com/t5/Box-Developer-Forum/Upload-a-file-using-API-in-PowerShell/m-p/35749#M2258 as a reference.

Unfortunately,  I could already upload, and none of the extra details on uploading helped me to get a new version up.