diff --git a/src/Serializer/FiasSerializer.php b/src/Serializer/FiasSerializer.php
index 3103231..49c85a9 100644
--- a/src/Serializer/FiasSerializer.php
+++ b/src/Serializer/FiasSerializer.php
@@ -14,13 +14,10 @@
 use Symfony\Component\PropertyInfo\Extractor\ReflectionExtractor;
 use Symfony\Component\Serializer\Encoder\DecoderInterface;
 use Symfony\Component\Serializer\Encoder\EncoderInterface;
-use Symfony\Component\Serializer\Encoder\JsonEncoder;
-use Symfony\Component\Serializer\Encoder\XmlEncoder;
 use Symfony\Component\Serializer\Normalizer\DateTimeNormalizer;
 use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
 use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
 use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
-use Symfony\Component\Serializer\Serializer;
 use Symfony\Component\Serializer\SerializerInterface;
 
 /**
@@ -28,7 +25,7 @@
  */
 final class FiasSerializer implements SerializerInterface
 {
-    private readonly Serializer $nestedSerializer;
+    private readonly SerializerInterface $nestedSerializer;
 
     /**
      * @param array<DenormalizerInterface|NormalizerInterface>|null $normalizers
@@ -57,18 +54,7 @@ public function __construct(?array $normalizers = null, ?array $encoders = null)
             ];
         }
 
-        if ($encoders === null) {
-            $encoders = [
-                new XmlEncoder(
-                    [
-                        XmlEncoder::TYPE_CAST_ATTRIBUTES => false,
-                    ]
-                ),
-                new JsonEncoder(),
-            ];
-        }
-
-        $this->nestedSerializer = new Serializer($normalizers, $encoders);
+        $this->nestedSerializer = new \Liquetsoft\Fias\Component\Serializer\FiasSerializer($normalizers, $encoders);
     }
 
     /**
diff --git a/tests/MockModel/FiasSerializerMock.php b/tests/MockModel/FiasSerializerMock.php
index d70a74f..c609fb0 100644
--- a/tests/MockModel/FiasSerializerMock.php
+++ b/tests/MockModel/FiasSerializerMock.php
@@ -7,7 +7,7 @@
 use Illuminate\Database\Eloquent\Model;
 
 /**
- * Мок для проверки десериалищации.
+ * Мок для проверки десериализации.
  */
 class FiasSerializerMock extends Model
 {
diff --git a/tests/MockModel/FiasSerializerMockJson.php b/tests/MockModel/FiasSerializerMockJson.php
new file mode 100644
index 0000000..1b48576
--- /dev/null
+++ b/tests/MockModel/FiasSerializerMockJson.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Liquetsoft\Fias\Laravel\LiquetsoftFiasBundle\Tests\MockModel;
+
+/**
+ * Мок для проверки десериализации json.
+ */
+final class FiasSerializerMockJson
+{
+    public int $id = 0;
+    public string $name = '';
+    public float $floatNum = .0;
+    public ?\DateTimeInterface $date = null;
+}
diff --git a/tests/Serializer/FiasSerializerTest.php b/tests/Serializer/FiasSerializerTest.php
index 8902ec8..7457325 100644
--- a/tests/Serializer/FiasSerializerTest.php
+++ b/tests/Serializer/FiasSerializerTest.php
@@ -8,6 +8,7 @@
 use Liquetsoft\Fias\Laravel\LiquetsoftFiasBundle\Serializer\FiasSerializer;
 use Liquetsoft\Fias\Laravel\LiquetsoftFiasBundle\Tests\BaseCase;
 use Liquetsoft\Fias\Laravel\LiquetsoftFiasBundle\Tests\MockModel\FiasSerializerMock;
+use Liquetsoft\Fias\Laravel\LiquetsoftFiasBundle\Tests\MockModel\FiasSerializerMockJson;
 use Symfony\Component\Serializer\Exception\InvalidArgumentException;
 use Symfony\Component\Serializer\Exception\NotNormalizableValueException;
 
@@ -51,6 +52,32 @@ public function testDeserialize(): void
         $this->assertNull($model->nullableCast);
     }
 
+    /**
+     * Проверяет, что json верно конвертируется в модель.
+     */
+    public function testDeserializeJson(): void
+    {
+        $data = json_encode(
+            [
+                'id' => '10',
+                'name' => 'test',
+                'floatNum' => '10.1',
+                'date' => '10.10.2019 10:10:10',
+            ]
+        );
+
+        $type = FiasSerializerMockJson::class;
+
+        $serializer = new FiasSerializer();
+        $model = $serializer->deserialize($data, $type, 'json');
+
+        $this->assertInstanceOf($type, $model);
+        $this->assertSame(10, $model->id);
+        $this->assertSame('test', $model->name);
+        $this->assertSame(10.1, $model->floatNum);
+        $this->assertSame('2019-10-10 10:10', $model->date?->format('Y-m-d H:i'));
+    }
+
     /**
      * Проверяет, что xml верно конвертируется в указанный объект.
      */
@@ -125,19 +152,4 @@ public function testDeserializeWrongObjectToPopulate(): void
             ]
         );
     }
-
-    /**
-     * Проверяет, что пустая строка вернется как пустая строка, а не null.
-     */
-    public function testDeserializeEmptyString(): void
-    {
-        $data = '<ActualStatus name=""/>';
-        $type = FiasSerializerMock::class;
-
-        $serializer = new FiasSerializer();
-        $model = $serializer->deserialize($data, $type, 'xml');
-
-        $this->assertInstanceOf(FiasSerializerMock::class, $model);
-        $this->assertSame('', $model->getAttribute('name'));
-    }
 }