ERROR ITMS-9000 for AIR app

I am getting this error when compiling an IPA with Flash CC 2014, AIR version 15.0:

"ERROR ITMS-9000: "This bundle is invalid. The value for key CFBundleShortVersionString [1.0] in the Info.plist file must contain a higher version than that of the previously approved version [1.5]."

Funny; this is an upgrade to an existing app. The current version on the app store is 1.1. The version I am submitting to Apple is 2.0. So, I really can't understand what this error is about.

Any thoughts would be greatly appreciated!