is anyone else experiencing problems when trying to incorporate fieldMiddleware through graphql-yoga?

const server = new GraphQLServer({
  typeDefs: './src/schema.graphql',
  resolvers,
  fieldMiddleware: [algoliaMiddleware],
  context: req => ({ ...req, db }),
});

this makes my server crash, saying fieldMiddleware is not a valid property, but thats what the documentation provides as boilerplate