Nette-project, composer odmítá instalovat mathematicator-core/tokenizer

Zdravím,
mám kostru aplikace (nette project nebo jak je to na githubu) instalovanou přes composer, chtěl jsem vyzkoušet mathematicator-core/tokenizer. Dal jsem composer require, a vyplivlo mi hlášku, které se nemůžu zbavit (dokonce ani SO nezabírá :/);

Problem 1
    - mathematicator-core/search v1.0.1 requires mathematicator-core/tokenizer ~1.0 -> satisfiable by mathematicator-core/tokenizer[v1.0.0] but these conflict with your requirements or minimum-stability.
    - mathematicator-core/search v1.0.0 requires mathematicator-core/tokenizer ~1.0 -> satisfiable by mathematicator-core/tokenizer[v1.0.0] but these conflict with your requirements or minimum-stability.
    - mathematicator-core/tokenizer dev-master requires mathematicator-core/numbers ~1.0 -> satisfiable by mathematicator-core/numbers[v1.0.0].
    - mathematicator-core/numbers v1.0.0 requires mathematicator-core/search ~1.0 -> satisfiable by mathematicator-core/search[v1.0.0, v1.0.1].
    - Installation request for mathematicator-core/tokenizer dev-master -> satisfiable by mathematicator-core/tokenizer[dev-master].

Někdo nějaký nápad, jak to dát pryč?