Export App with Updated Version

Dear Desk,

I have updated an app in DEV with version 2.
In Pre-prod the same app is available with version 1. I like to export the DEV app (version 2) to pre-prod and update the pre-prod app version to 2.
Currently when i am trying to import the app from DEV into pre-prod, its creating another app with the same name instead of having a new version of the existing App. Can you please help?

Thanks
Suparna