Upgrading to bigger hard drive

Hello, my backup drive is getting a bit to small for the data. Is there a way to upgrade the hard drive to a higher capacity drive.

Thanks Simon

Add the drive alongside the original if possible, robocopy the files across as a mirror, when done, stop Syncthing, rerun robocopy to pick up any changes. Go to disk management, swap drive letters around to match up the folders to the drive letters. shutdown, yank old drive, start up.