diff --git a/app/code/Magento/CustomerImportExport/Test/Unit/Model/ResourceModel/Import/CustomerComposite/DataTest.php b/app/code/Magento/CustomerImportExport/Test/Unit/Model/ResourceModel/Import/CustomerComposite/DataTest.php
index 12f39ff67ec8b..488217f53ebab 100644
--- a/app/code/Magento/CustomerImportExport/Test/Unit/Model/ResourceModel/Import/CustomerComposite/DataTest.php
+++ b/app/code/Magento/CustomerImportExport/Test/Unit/Model/ResourceModel/Import/CustomerComposite/DataTest.php
@@ -100,16 +100,19 @@ public function testGetNextBunch($entityType, $bunchData, $expectedData)
 
         $resource = $dependencies['resource'];
         $helper = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);
-        $jsonDecoderMock = $this->getMockBuilder(\Magento\Framework\Json\DecoderInterface::class)
-            ->disableOriginalConstructor()
+        $serializerMock = $this->getMockBuilder(\Magento\Framework\Serialize\Serializer\Json::class)
             ->getMock();
-        $jsonDecoderMock->expects($this->once())
-            ->method('decode')
-            ->willReturn(json_decode($bunchData, true));
+        $serializerMock->expects($this->any())
+            ->method('unserialize')
+            ->willReturnCallback(
+                function ($serializedData) {
+                    return json_decode($serializedData, true);
+                }
+            );
         $jsonHelper = $helper->getObject(
             \Magento\Framework\Json\Helper\Data::class,
             [
-                'jsonDecoder' => $jsonDecoderMock,
+                'serializer' => $serializerMock,
             ]
         );
         unset($dependencies['resource'], $dependencies['json_helper']);
diff --git a/lib/internal/Magento/Framework/Json/Decoder.php b/lib/internal/Magento/Framework/Json/Decoder.php
index 87f51daba35a4..5232330de5d9c 100644
--- a/lib/internal/Magento/Framework/Json/Decoder.php
+++ b/lib/internal/Magento/Framework/Json/Decoder.php
@@ -10,14 +10,30 @@
  */
 class Decoder implements DecoderInterface
 {
+    /**
+     * @var \Magento\Framework\Serialize\Serializer\Json
+     */
+    private $serializer;
+
+    /**
+     * @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
+     * @throws \RuntimeException
+     */
+    public function __construct(\Magento\Framework\Serialize\Serializer\Json $serializer = null)
+    {
+        $this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
+            ->get(\Magento\Framework\Serialize\Serializer\Json::class);
+    }
+
     /**
      * Decodes the given $data string which is encoded in the JSON format.
      *
      * @param string $data
-     * @return mixed
+     * @return array|bool|float|int|mixed|null|string
+     * @throws \InvalidArgumentException
      */
     public function decode($data)
     {
-        return \Zend_Json::decode($data);
+        return $this->serializer->unserialize($data);
     }
 }
diff --git a/lib/internal/Magento/Framework/Json/Encoder.php b/lib/internal/Magento/Framework/Json/Encoder.php
index d04445bbdacb6..515647431b132 100644
--- a/lib/internal/Magento/Framework/Json/Encoder.php
+++ b/lib/internal/Magento/Framework/Json/Encoder.php
@@ -17,23 +17,35 @@ class Encoder implements EncoderInterface
      */
     protected $translateInline;
 
+    /**
+     * @var \Magento\Framework\Serialize\Serializer\Json
+     */
+    private $serializer;
+
     /**
      * @param \Magento\Framework\Translate\InlineInterface $translateInline
+     * @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
+     * @throws \RuntimeException
      */
-    public function __construct(\Magento\Framework\Translate\InlineInterface $translateInline)
-    {
+    public function __construct(
+        \Magento\Framework\Translate\InlineInterface $translateInline,
+        \Magento\Framework\Serialize\Serializer\Json $serializer = null
+    ) {
         $this->translateInline = $translateInline;
+        $this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
+            ->get(\Magento\Framework\Serialize\Serializer\Json::class);
     }
 
     /**
      * Encode the mixed $data into the JSON format.
      *
      * @param mixed $data
-     * @return string
+     * @return bool|string
+     * @throws \InvalidArgumentException
      */
     public function encode($data)
     {
         $this->translateInline->processResponseBody($data);
-        return \Zend_Json::encode($data);
+        return $this->serializer->serialize($data);
     }
 }
diff --git a/lib/internal/Magento/Framework/Json/Helper/Data.php b/lib/internal/Magento/Framework/Json/Helper/Data.php
index a516d65e98989..f12124ea5f5af 100644
--- a/lib/internal/Magento/Framework/Json/Helper/Data.php
+++ b/lib/internal/Magento/Framework/Json/Helper/Data.php
@@ -14,38 +14,51 @@ class Data extends \Magento\Framework\App\Helper\AbstractHelper
 {
     /**
      * @var \Magento\Framework\Json\DecoderInterface
+     * @deprecated
      */
     protected $jsonDecoder;
 
     /**
      * @var \Magento\Framework\Json\EncoderInterface
+     * @deprecated
      */
     protected $jsonEncoder;
 
+    /**
+     * @var \Magento\Framework\Serialize\Serializer\Json
+     */
+    private $serializer;
+
     /**
      * @param \Magento\Framework\App\Helper\Context $context
      * @param \Magento\Framework\Json\DecoderInterface $jsonDecoder
      * @param \Magento\Framework\Json\EncoderInterface $jsonEncoder
+     * @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
+     * @throws \RuntimeException
      */
     public function __construct(
         \Magento\Framework\App\Helper\Context $context,
         \Magento\Framework\Json\DecoderInterface $jsonDecoder,
-        \Magento\Framework\Json\EncoderInterface $jsonEncoder
+        \Magento\Framework\Json\EncoderInterface $jsonEncoder,
+        \Magento\Framework\Serialize\Serializer\Json $serializer = null
     ) {
         parent::__construct($context);
         $this->jsonDecoder = $jsonDecoder;
         $this->jsonEncoder = $jsonEncoder;
+        $this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
+            ->get(\Magento\Framework\Serialize\Serializer\Json::class);
     }
 
     /**
      * Encode the mixed $valueToEncode into the JSON format
      *
      * @param mixed $valueToEncode
-     * @return string
+     * @return bool|string
+     * @throws \InvalidArgumentException
      */
     public function jsonEncode($valueToEncode)
     {
-        return $this->jsonEncoder->encode($valueToEncode);
+        return $this->serializer->serialize($valueToEncode);
     }
 
     /**
@@ -53,10 +66,11 @@ public function jsonEncode($valueToEncode)
      * encoded in the JSON format
      *
      * @param string $encodedValue
-     * @return mixed
+     * @return array|bool|float|int|mixed|null|string
+     * @throws \InvalidArgumentException
      */
     public function jsonDecode($encodedValue)
     {
-        return $this->jsonDecoder->decode($encodedValue);
+        return $this->serializer->unserialize($encodedValue);
     }
 }
diff --git a/lib/internal/Magento/Framework/Json/Test/Unit/Helper/DataTest.php b/lib/internal/Magento/Framework/Json/Test/Unit/Helper/DataTest.php
index 1c480302d45bd..599f5a2e318b6 100644
--- a/lib/internal/Magento/Framework/Json/Test/Unit/Helper/DataTest.php
+++ b/lib/internal/Magento/Framework/Json/Test/Unit/Helper/DataTest.php
@@ -18,6 +18,11 @@ class DataTest extends \PHPUnit_Framework_TestCase
     /** @var \Magento\Framework\Json\DecoderInterface | \PHPUnit_Framework_MockObject_MockObject  */
     protected $jsonDecoderMock;
 
+    /**
+     * @var \PHPUnit_Framework_MockObject_MockObject|\Magento\Framework\Serialize\Serializer\Json
+     */
+    private $serializerMock;
+
     protected function setUp()
     {
         $objectManager = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);
@@ -27,32 +32,80 @@ protected function setUp()
         $this->jsonDecoderMock = $this->getMockBuilder(\Magento\Framework\Json\DecoderInterface::class)
             ->disableOriginalConstructor()
             ->getMock();
+
+        $this->serializerMock = $this->getMockBuilder(\Magento\Framework\Serialize\Serializer\Json::class)
+            ->getMock();
+        $this->serializerMock->expects($this->any())
+            ->method('unserialize')
+            ->willReturnCallback(
+                function ($serializedData) {
+                    return json_decode($serializedData, true);
+                }
+            );
+        $this->serializerMock->expects($this->any())
+            ->method('serialize')
+            ->willReturnCallback(
+                function ($serializedData) {
+                    return json_encode($serializedData);
+                }
+            );
         $this->helper = $objectManager->getObject(
             \Magento\Framework\Json\Helper\Data::class,
             [
                 'jsonEncoder' => $this->jsonEncoderMock,
                 'jsonDecoder' => $this->jsonDecoderMock,
+                'serializer' => $this->serializerMock
             ]
         );
     }
 
-    public function testJsonEncode()
+    /**
+     * @param string $value
+     * @param string|int|float|bool|array|null $expected
+     * @throws \InvalidArgumentException
+     * @dataProvider getJsonEncodeDataProvider
+     */
+    public function testJsonEncode($value, $expected)
+    {
+        $this->assertEquals($expected, $this->helper->jsonEncode($value));
+    }
+
+    public function getJsonEncodeDataProvider()
+    {
+        return [
+            ['', '""'],
+            ['string', '"string"'],
+            [null, 'null'],
+            [false, 'false'],
+            [['a' => 'b', 'd' => 123], '{"a":"b","d":123}'],
+            [123, '123'],
+            [10.56, '10.56'],
+            [new \stdClass(), '{}'],
+        ];
+    }
+
+    /**
+     * @param string $value
+     * @param string|int|float|bool|array|null $expected
+     * @throws \InvalidArgumentException
+     * @dataProvider getJsonDecodeDataProvider
+     */
+    public function testJsonDecode($value, $expected)
     {
-        $expected = '"valueToEncode"';
-        $valueToEncode = 'valueToEncode';
-        $this->jsonEncoderMock->expects($this->once())
-            ->method('encode')
-            ->willReturn($expected);
-        $this->assertEquals($expected, $this->helper->jsonEncode($valueToEncode));
+        $this->assertEquals($expected, $this->helper->jsonDecode($value));
     }
 
-    public function testJsonDecode()
+    public function getJsonDecodeDataProvider()
     {
-        $expected = '"valueToDecode"';
-        $valueToDecode = 'valueToDecode';
-        $this->jsonDecoderMock->expects($this->once())
-            ->method('decode')
-            ->willReturn($expected);
-        $this->assertEquals($expected, $this->helper->jsonDecode($valueToDecode));
+        return [
+            ['""', ''],
+            ['"string"', 'string'],
+            ['null', null],
+            ['false', false],
+            ['{"a":"b","d":123}', ['a' => 'b', 'd' => 123]],
+            ['123', 123],
+            ['10.56', 10.56],
+            ['{}', []],
+        ];
     }
 }