diff --git a/tests/Unit/Product/Detail/ProductDetailViewFactoryTest.php b/tests/Unit/Product/Detail/ProductDetailViewFactoryTest.php
index 9394fb6aaf..ac21a46c78 100644
--- a/tests/Unit/Product/Detail/ProductDetailViewFactoryTest.php
+++ b/tests/Unit/Product/Detail/ProductDetailViewFactoryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests\ReadModelBundle\Unit\Product\Detail;
 
 use PHPUnit\Framework\TestCase;
diff --git a/tests/Unit/Product/Listed/ListedProductViewFactoryTest.php b/tests/Unit/Product/Listed/ListedProductViewFactoryTest.php
index f7a526eecf..d4e951d908 100644
--- a/tests/Unit/Product/Listed/ListedProductViewFactoryTest.php
+++ b/tests/Unit/Product/Listed/ListedProductViewFactoryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests\ReadModelBundle\Unit\Product\Listed;
 
 use Doctrine\Common\Collections\ArrayCollection;