prisma: Runtime error on Zeit Now

When deployed to Zeit Now, my proof-of-concept repo (https://github.com/iherger/prisma2-now) leads to the following runtime errors:

Photon could not resolve the needed binary for the current platform linux-glibc-libssl1.0.2.
Instead we found /var/task/node_modules/@generated/photon/runtime/query-engine-linux-glibc-libssl1.0.1, which we're trying for now. In case Photon runs, just ignore this message.

The prisma data source and generators are defined without the platforms setting, i.e.

datasource pg {
  provider = "postgresql"
  url      = env("POSTGRESQL_URL")
  enabled  = true
}

generator photon {
  provider = "photonjs"
}

generator nexus_prisma {
  provider = "nexus-prisma"
}