Upgrade Adobe Air

We installed Adobe Photoshop and Adobe Illustrator on a few of our Windows 7 workstations. We also started using Tenable Nessus for internal PCI compliance testing. The results of our Nessus scan show we need to upgrade Adobe Air. I can't figure out how to upgrade Air. I don't even think we are using it, I suspect it was part of the Photoshop and/or Illustrator installs.