diff --git a/php/src/Snagshout/Promote/Client.php b/php/src/Snagshout/Promote/Client.php
index 2bb5cef..126469b 100644
--- a/php/src/Snagshout/Promote/Client.php
+++ b/php/src/Snagshout/Promote/Client.php
@@ -62,7 +62,6 @@ protected function buildResource(string $resourceClass): AbstractResource
             new Serializer(
                 NormalizerFactory::create(),
                 [
-                    new RawEncoder(),
                     new JsonEncoder(new JsonEncode(), new JsonDecode()),
                 ]
             )
diff --git a/php/src/Snagshout/Promote/Encoder/RawEncoder.php b/php/src/Snagshout/Promote/Encoder/RawEncoder.php
deleted file mode 100644
index b34aa5a..0000000
--- a/php/src/Snagshout/Promote/Encoder/RawEncoder.php
+++ /dev/null
@@ -1,60 +0,0 @@
-<?php
-
-/**
- * Copyright 2016-2023, Snagshout <developers@snagshout.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- *
- * This file is part of the Merchant package
- */
-
-namespace Snagshout\Promote\Encoder;
-
-use Symfony\Component\Serializer\Encoder\DecoderInterface;
-use Symfony\Component\Serializer\Encoder\EncoderInterface;
-
-/**
- * Class RawEncoder.
- *
- * Encoder with no encoding (keeps the same output as the input)
- *
- * @author Andrii Prykhodko <andriichello@gmail.com>
- * @package Snagshout\Promote\Encoder
- */
-class RawEncoder implements DecoderInterface, EncoderInterface
-{
-    const FORMAT = 'raw';
-
-    /**
-     * {@inheritdoc}
-     */
-    public function decode($data, $format, array $context = array())
-    {
-        return $data;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function supportsDecoding($format): bool
-    {
-        return self::FORMAT === $format;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function encode($data, $format, array $context = array()): string
-    {
-        return $data;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function supportsEncoding($format): bool
-    {
-        return self::FORMAT === $format;
-    }
-}
diff --git a/php/src/Snagshout/Promote/Normalizer/DealImpressionsRequestBodyNormalizer.php b/php/src/Snagshout/Promote/Normalizer/DealImpressionsRequestBodyNormalizer.php
index 8319249..0e98645 100644
--- a/php/src/Snagshout/Promote/Normalizer/DealImpressionsRequestBodyNormalizer.php
+++ b/php/src/Snagshout/Promote/Normalizer/DealImpressionsRequestBodyNormalizer.php
@@ -41,7 +41,8 @@ public function normalize($object, $format = null, array $context = [])
         if (null !== $object->getImpressions()) {
             $values = [];
             foreach ($object->getImpressions() as $value) {
-                $values[] = $this->serializer->serialize($value, 'raw', $context);
+                $json = $this->serializer->serialize($value, 'json', $context);
+                $values[] = json_decode($json, true);
             }
             $data['impressions'] = $values;
         }
diff --git a/php/src/Snagshout/Promote/Normalizer/DealNormalizer.php b/php/src/Snagshout/Promote/Normalizer/DealNormalizer.php
index 47fd6f0..f7b8866 100644
--- a/php/src/Snagshout/Promote/Normalizer/DealNormalizer.php
+++ b/php/src/Snagshout/Promote/Normalizer/DealNormalizer.php
@@ -220,14 +220,16 @@ public function normalize($object, $format = null, array $context = [])
         if (null !== $object->getCategories()) {
             $values = [];
             foreach ($object->getCategories() as $value) {
-                $values[] = $this->serializer->serialize($value, 'raw', $context);
+                $json = $this->serializer->serialize($value, 'json', $context);
+                $values[] = json_decode($json, true);
             }
             $data['categories'] = $values;
         }
         if (null !== $object->getMedia()) {
             $values_1 = [];
             foreach ($object->getMedia() as $value_1) {
-                $values_1[] = $this->serializer->serialize($value_1, 'raw', $context);
+                $json = $this->serializer->serialize($value_1, 'json', $context);
+                $values_1[] = json_decode($json, true);
             }
             $data['media'] = $values_1;
         }
diff --git a/php/tests/Snagshout/Promote/Normalizer/DealNormalizerTest.php b/php/tests/Snagshout/Promote/Normalizer/DealNormalizerTest.php
index ff6a580..e0bea9b 100644
--- a/php/tests/Snagshout/Promote/Normalizer/DealNormalizerTest.php
+++ b/php/tests/Snagshout/Promote/Normalizer/DealNormalizerTest.php
@@ -12,7 +12,6 @@
 namespace Tests\Snagshout\Promote\Normalizer;
 
 use PHPUnit\Framework\TestCase as BaseTestCase;
-use Snagshout\Promote\Encoder\RawEncoder;
 use Snagshout\Promote\Model\Category;
 use Snagshout\Promote\Model\Deal;
 use Snagshout\Promote\Model\Medium;
@@ -38,7 +37,6 @@ protected function getSerializer()
         return new Serializer(
             NormalizerFactory::create(),
             [
-                new RawEncoder(),
                 new JsonEncoder(
                     new JsonEncode(),
                     new JsonDecode()