Remove new version notification?

Since the release of the newest version of the Nik Collection I am receiving a prompt to download it each time I launch Nik from either Photoshop Elements 19 or Affinity Photo. I don’t require the update, because my existing (previous) version in combination with PhotoLab (which includes Viewpoint) covers my needs nicely.

It would therefore be handy if I could permanently dismiss this launch notification. Any suggestions?