Migration如何设置字段的默认值

比如我想要设置password字段在数据库中的默认值为123456，该怎么写

        Schema::create('users', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->string('email')->unique();
            $table->string('password', 60);
            $table->rememberToken();
            $table->timestamps();
        });