diff --git a/core/vendor/symfony/serializer/Symfony/Component/Serializer/Encoder/XmlEncoder.php b/core/vendor/symfony/serializer/Symfony/Component/Serializer/Encoder/XmlEncoder.php
index cb46926..3095ff9 100644
--- a/core/vendor/symfony/serializer/Symfony/Component/Serializer/Encoder/XmlEncoder.php
+++ b/core/vendor/symfony/serializer/Symfony/Component/Serializer/Encoder/XmlEncoder.php
@@ -20,7 +20,7 @@
  * @author John Wards <jwards@whiteoctober.co.uk>
  * @author Fabian Vogler <fabian@equivalence.ch>
  */
-class XmlEncoder extends SerializerAwareEncoder implements EncoderInterface, DecoderInterface, NormalizationAwareInterface
+class XmlEncoder extends SerializerAwareEncoder implements EncoderInterface, DecoderInterface
 {
     private $dom;
     private $format;