<?php

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

/**
 * Class CreateSettingsListsTable
 */
class CreateSettingsListsTable extends Migration
{

	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up()
	{
		Schema::create('settings__lists', function (Blueprint $table)
		{
			$table->string('setting_key')->index()->unique();
			$table->json('setting_value')->nullable();
		});
	}


	/**
	 * Reverse the migrations.
	 *
	 * @return void
	 */
	public function down()
	{
		Schema::dropIfExists('settings__lists');
	}

}

<?php

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

/**
 * Class CreateSettingsListsTable
 */
class CreateSettingsListsTable extends Migration
{

	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up()
	{
		Schema::create('settings__lists', function (Blueprint $table)
		{
			$table->string('setting_key')->index()->unique();
			$table->binary('setting_value')->nullable();
		});
	}


	/**
	 * Reverse the migrations.
	 *
	 * @return void
	 */
	public function down()
	{
		Schema::dropIfExists('settings__lists');
	}

}

Change JSON database column to binary
Change JSON database column to binary

When using certain databases with certain character sets & collations, we are unable to create JSON columns, however a binary column is perfectly fine in this instance.