--- ../tests/DeepCopyTest/TypeFilter/Spl/ArrayObjectFilterTest.php	2026-08-09 13:50:56.408768033 +0300
+++ ../tests/DeepCopyTest/TypeFilter/Spl/ArrayObjectFilterTest.php	2026-08-09 13:51:45.878005198 +0300
@@ -6,6 +6,7 @@
 use DeepCopy\DeepCopy;
 use DeepCopy\TypeFilter\Spl\ArrayObjectFilter;
 use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
 use RecursiveArrayIterator;
 
@@ -16,6 +17,8 @@
  */
 final class ArrayObjectFilterTest extends TestCase
 {
+    use ProphecyTrait;
+
     /**
      * @var ArrayObjectFilter
      */