Evernote Cloud SDK 2.0 for PHP and Laravel 5.1

I am trying to integrate the evernote/evernote-cloud-sdk-php package on a Laravel v5.1.30 app.

I tried installing it via composer with composer require evernote/evernote-cloud-sdk-php dev-master and with composer require evernote/evernote-cloud-sdk-php but had no success. Even though I've set the "minimum-stability": "dev" in my composer.json I am still getting

Problem 1
- Installation request for evernote/evernote-cloud-sdk-php dev-master -> satisfiable by evernote/evernote-cloud-sdk-php[dev-master].
- evernote/evernote-cloud-sdk-php dev-master requires ezyang/htmlpurifier ~4.6.0 -> no matching package found.

In my composer.json file I already have a "ezyang/htmlpurifier": "^4.7" entry. It seems to be a dependency for laravel.

$> composer depends ezyang/htmlpurifier
laravel/laravel dev-integrate_evernote requires ezyang/htmlpurifier (^4.7)

Any ideas on how I could do this integration?

via Chebli Mohamed