Renaming a column that is a foreign key in Laravel

RenameForeignKeyColumn.php

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class ConvertCustomerIdToUserIdOnSubscriptionsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('subscriptions', function(Blueprint $table) {
            $table->dropForeign(['customer_id']);
            $table->renameColumn('customer_id', 'user_id');
            $table->foreign('user_id')
                ->references('id')
                ->on('users')
                ->onDelete('cascade');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('subscriptions', function(Blueprint $table) {
            $table->dropForeign(['user_id']);
            $table->renameColumn('user_id', 'customer_id');
            $table->foreign('customer_id')
            	->references('id')
            	->on('users')
            	->onDelete('cascade');
        });
    }
}