Overriding configuration in included builds

Our project wants to pin people to Gradle 5.1. Currently, anyway. Mostly to reduce uncertainty.

Someone who’s pulling our project in as an included build wants to run their build as Gradle 5.2.1.

It seems reasonable that they’d then want to override our project’s configuration to change the version of Gradle it’s pinned to, but is there even a way? I can’t find a way to override arbitrary configuration, only dependencies.