diff --git a/tests/BusProNet/DataProcessor/BookingDataProcessorTest.php b/tests/BusProNet/DataProcessor/BookingDataProcessorTest.php
index 484adc6..1dcf367 100644
--- a/tests/BusProNet/DataProcessor/BookingDataProcessorTest.php
+++ b/tests/BusProNet/DataProcessor/BookingDataProcessorTest.php
@@ -23,6 +23,7 @@ use App\Form\Model\ParticipantDto;
 use App\Service\BookingPriceCalculatorService;
 use App\Service\InsuranceService;
 use PHPUnit\Framework\TestCase;
+use Psr\Log\NullLogger;
 
 /**
  * Comprehensive test suite for BookingDataProcessor.
@@ -50,7 +51,7 @@ class BookingDataProcessorTest extends TestCase
 
         // Create the new dependencies
         $mappingCollector = new ServiceMappingCollector();
-        $serviceProcessor = new ParticipantServiceProcessor();
+        $serviceProcessor = new ParticipantServiceProcessor(new NullLogger());
         $payloadBuilder = new BookingPayloadBuilder($mappingCollector);
         $personalDataSynchronizer = new PersonalDataSynchronizer();