diff --git a/tests/Form/Model/ParticipantEditDtoTest.php b/tests/Form/Model/ParticipantEditDtoTest.php
index f71f0da..f24d588 100644
--- a/tests/Form/Model/ParticipantEditDtoTest.php
+++ b/tests/Form/Model/ParticipantEditDtoTest.php
@@ -9,8 +9,11 @@ use App\BusProNet\XmlLoader\AgencyLoader;
 use App\Form\Model\BookingDto;
 use App\Form\Model\ParticipantDto;
 use App\Form\Model\ParticipantEditDto;
+use App\Form\Service\ServiceAgeEvaluator;
 use App\Service\BookingPriceCalculatorService;
+use App\Service\ParticipantEligibilityService;
 use App\Service\VoucherValidationService;
+use App\Validator\Constraints\MandatoryAdditionalServicesSelectedValidator;
 use App\Validator\Constraints\PromoVoucherValidator;
 use App\Validator\Constraints\PurchaseVoucherValidator;
 use PHPUnit\Framework\TestCase;
@@ -38,12 +41,21 @@ class ParticipantEditDtoTest extends TestCase
         // Create mock services for validator dependencies
         $mockVoucherService = $this->createMock(VoucherValidationService::class);
         $mockPriceCalculatorService = $this->createMock(BookingPriceCalculatorService::class);
+        $mockParticipantEligibilityService = $this->createMock(ParticipantEligibilityService::class);
+        $mockServiceAgeEvaluator = $this->createMock(ServiceAgeEvaluator::class);
 
         // Create custom validator factory that can inject dependencies
-        $validatorFactory = new class($mockVoucherService, $mockPriceCalculatorService) implements ConstraintValidatorFactoryInterface {
+        $validatorFactory = new class(
+            $mockVoucherService,
+            $mockPriceCalculatorService,
+            $mockParticipantEligibilityService,
+            $mockServiceAgeEvaluator
+        ) implements ConstraintValidatorFactoryInterface {
             public function __construct(
                 private readonly VoucherValidationService $voucherService,
                 private readonly BookingPriceCalculatorService $priceCalculatorService,
+                private readonly ParticipantEligibilityService $participantEligibilityService,
+                private readonly ServiceAgeEvaluator $serviceAgeEvaluator,
             ) {
             }
 
@@ -63,6 +75,13 @@ class ParticipantEditDtoTest extends TestCase
                     return new EmailValidator(Email::VALIDATION_MODE_HTML5);
                 }
 
+                if (MandatoryAdditionalServicesSelectedValidator::class === $className) {
+                    return new MandatoryAdditionalServicesSelectedValidator(
+                        $this->participantEligibilityService,
+                        $this->serviceAgeEvaluator
+                    );
+                }
+
                 return new $className();
             }
         };