title: Laravel 8 - Change existing migration
body: <p>I am developing on <code>Laravel Framework 8.33.1</code> and have the following migration on my local environment and also in production.</p>
  <pre><code>class CreateCompanyTable extends Migration
  {
      /**
       * Run the migrations.
       *
       * @return void
       */
      public function up()
      {
          Schema::create('company', function (Blueprint $table) {
              $table-&gt;id();
              $table-&gt;integer('company_id');
              $table-&gt;integer('messageId');
              $table-&gt;string('url');
              $table-&gt;timestamps();
  
              /**
              New table:
              $table-&gt;id();
              $table-&gt;integer('company_id')-&gt;nullable($value = true);
              $table-&gt;integer('messageId');
              $table-&gt;integer('people_id')-&gt;nullable($value = true);
              $table-&gt;string('url')-&gt;nullable($value = true);
              $table-&gt;timestamps();
               */
          });
      }
  
      /**
       * Reverse the migrations.
       *
       * @return void
       */
      public function down()
      {
          Schema::dropIfExists('company');
      }
  }
  
  </code></pre>
  <p>I would like to change the migration with the following adapted fields:</p>
  <pre><code>            $table-&gt;id();
              $table-&gt;integer('company_id')-&gt;nullable($value = true);
              $table-&gt;integer('messageId');
              $table-&gt;integer('people_id')-&gt;nullable($value = true);
              $table-&gt;string('url')-&gt;nullable($value = true);
              $table-&gt;timestamps();
  </code></pre>
  <p>As I am using the current migration in production I do not want to lose data.</p>
  <p>I simply tried to modify the migration file with my new table definition, but I get:</p>
  <pre><code>&gt; php artisan migrate
  Nothing to migrate.
  
  </code></pre>
  <p>Any suggestions how to change the migration properly in laravel?</p>
  <p>I appreciate your replies!</p>