diff --git a/src/contracts/Sets/ibexa-50.php b/src/contracts/Sets/ibexa-50.php
index f1aaff4..d285344 100644
--- a/src/contracts/Sets/ibexa-50.php
+++ b/src/contracts/Sets/ibexa-50.php
@@ -216,6 +216,13 @@
         ]
     );
 
+    $rectorConfig->ruleWithConfiguration(
+        RenameClassRector::class,
+        [
+            'Ibexa\Bundle\Messenger\Stamp\DeduplicateStamp' => 'Ibexa\Contracts\Messenger\Stamp\DeduplicateStamp',
+        ]
+    );
+
     $rectorConfig->ruleWithConfiguration(PropertyToGetterRector::class, [
         'Ibexa\Contracts\Core\Repository\Values\ContentType\ContentType' => [
             'isContainer' => 'isContainer',
diff --git a/tests/lib/Sets/Ibexa50/Fixture/rename_class_deduplicate_stamp.php.inc b/tests/lib/Sets/Ibexa50/Fixture/rename_class_deduplicate_stamp.php.inc
new file mode 100644
index 0000000..77a7668
--- /dev/null
+++ b/tests/lib/Sets/Ibexa50/Fixture/rename_class_deduplicate_stamp.php.inc
@@ -0,0 +1,31 @@
+<?php
+
+namespace Ibexa\Rector\Tests\Sets\Ibexa50\Fixture;
+
+use Ibexa\Bundle\Messenger\Stamp\DeduplicateStamp;
+
+class DeduplicateStampUsage
+{
+    public function createStamp(): DeduplicateStamp
+    {
+        return new DeduplicateStamp('key');
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Ibexa\Rector\Tests\Sets\Ibexa50\Fixture;
+
+use Ibexa\Contracts\Messenger\Stamp\DeduplicateStamp;
+
+class DeduplicateStampUsage
+{
+    public function createStamp(): DeduplicateStamp
+    {
+        return new DeduplicateStamp('key');
+    }
+}
+
+?>