diff --git a/database/migrations/2018_07_26_170243_fix_payment_contact_foreign_key.php b/database/migrations/2018_07_26_170243_fix_payment_contact_foreign_key.php
index e9473773e7c2..0f479705cbb2 100644
--- a/database/migrations/2018_07_26_170243_fix_payment_contact_foreign_key.php
+++ b/database/migrations/2018_07_26_170243_fix_payment_contact_foreign_key.php
@@ -21,6 +21,16 @@ class FixPaymentContactForeignKey extends Migration
             Schema::table('payments', function ($table) {
                 $table->foreign('contact_id')->references('id')->on('contacts')->onDelete('cascade');
             });
+
+            Schema::table('licenses', function ($table) {
+                $table->unsignedInteger('affiliate_id')->nullable()->change();
+                $table->string('first_name')->nullable()->change();
+                $table->string('last_name')->nullable()->change();
+                $table->string('email')->nullable()->change();
+                $table->string('license_key')->unique()->nullable()->change();
+                $table->boolean('is_claimed')->nullable()->change();
+                $table->string('transaction_reference')->nullable()->change();
+            });
         } catch (Exception $exception) {
             // do nothing, change only needed for invoiceninja servers
         }