Cannot remove package phpoffice/phpword. (laravel 5.2)

I've been working on a Laravel project. While I'm trying to install some package. I got warned

Package phpoffice/phpexcel is abandoned, you should avoid using it. Use phpoffice/phpspreadsheet instead.

Therefore, I executed the command

composer remove phpoffice/phpexcel

The phpoffice/phpexcel has been remove from composer.json successfully.

Then install the package,

composer require phpoffice/phpspreadsheet

I still got warned by the same warning,

Package phpoffice/phpexcel is abandoned, you should avoid using it. Use phpoffice/phpspreadsheet instead.

I always got warned by this sentence from every composer command even the phpoffice/phpexcel has been removed from composer.json.

Pls help I really have no idea to remove this warning.

via Chebli Mohamed