This package is preventing laravel/serializable-closure from updating to laravel/serializable-closure V2
Happy to submit a PR if you want, just always ask before I submit since some projects appear to be dead.
Transitive dependencies not required in composer.json:
laravel/serializable-closure 1.3.7 ~ 2.0.0 Laravel Serializable Closure provides an easy and secure way to serializ...
>composer why laravel/serializable-closure
php-di/php-di 7.0.7 requires laravel/serializable-closure (^1.0)