diff --git a/src/database/migrations/2022_12_05_000001_create_license_table.php b/src/database/migrations/2022_12_05_000001_create_license_table.php
index 248909a..f3b5556 100644
--- a/src/database/migrations/2022_12_05_000001_create_license_table.php
+++ b/src/database/migrations/2022_12_05_000001_create_license_table.php
@@ -1,43 +1,43 @@
 <?php
 
 use Illuminate\Database\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Support\Facades\Schema;
 
 return new class extends Migration
 {
     /**
      * Run the migrations.
      *
      * @return void
      */
     public function up()
     {
         Schema::create('licenses', function (Blueprint $table) {
             $table->id();
             $table->integer('key_id')->unique();
             $table->integer('num_licenses');
             $table->string('product_id');
             $table->string('idempotency_key')->unique();
             $table->string('body');
             $table->string('status');
             $table->integer('owner_id');
             $table->boolean('nfr');
             $table->timestamps();
-            $table->timestamp('creation_date');
-            $table->timestamp('expiration_date');
+            $table->timestamp('creation_date')->nullable();
+            $table->timestamp('expiration_date')->nullable();
 
             $table->softDeletes();
         });
     }
 
     /**
      * Reverse the migrations.
      *
      * @return void
      */
     public function down()
     {
         Schema::dropIfExists('licenses');
     }
 };