Problem installing update due to conflict with existing package

I have two versions of Dronelink installed on my smartphone: the regular one and the DJI version. I have a Mini SE that I use with the Dronelink app, while I use the Mini 4 Pro with Dronelink for DJI. So far, no problems.

When I open the Mini SE version, I'm notified of an update. I download the APK file and start the installation, but the process fails because I get an error regarding a conflict with another existing package.

How do I upgrade?