mediatR 12.41 breaking change with IRequest

After upgrading to mediatR 12.41. I now have breaking changes with my code. I now get the error below when calling the Send() in the screenshot. 'OrderCancelledCommand' cannot be used as type parameter 'TRequest' in the generic type or method 'ISender.Send<TRequest>(TRequest, CancellationToken)'. However OrderCancelledCommand already implements IRequest<XXX>. To fix this compiler error, I had to make iOrderCancelledCommand inherit IRequest as well. So from public class OrderCancelledCommand : IRequest<ReservationAmendmentResult> to public class OrderCancelledCommand : IRequest<ReservationAmendmentResult>, IRequest Any ideas if this is the proper way to fixing this and what's causing it?