Error building with Swift Package Manager #667

After migrating to SPM when using plugin flutter_appauth we got following error building the app:

The package product 'FlutterFramework' requires minimum platform version 13.0 for the iOS platform, but this target supports 12.0

In Xcode project settings we have iOS 15.0 everywhere as minimum deployment target
When using cocoa pods version, we got no error.

Flutter 3.41.9
flutter_appauth ^12.0.2