diff --git a/src/Response.php b/src/Response.php
index 6cc11db..71d73b5 100644
--- a/src/Response.php
+++ b/src/Response.php
@@ -24,6 +24,11 @@
  */
 class Response extends Data
 {
+    /**
+     * @var null|JSON
+     */
+    protected $_jsonData = null;
+
     /**
      * Response constructor.
      * @param array|string $data
@@ -33,6 +38,7 @@ public function __construct($data = array())
         $data['code']    = 0;
         $data['headers'] = array();
         $data['body']    = '';
+        $this->_jsonData = null;
 
         parent::__construct($data);
     }
@@ -58,6 +64,8 @@ public function getCode()
      */
     public function setBody($body)
     {
+        $this->_jsonData = null; // Force update getJSON() result
+
         $this['body'] = (string)$body;
     }
 
@@ -74,7 +82,12 @@ public function getBody()
      */
     public function getJSON()
     {
-        return new JSON($this->getBody());
+        if (null === $this->_jsonData) {
+            $this->_jsonData = new JSON($this->get('body'));
+            $this->_jsonData->setFlags(\ArrayObject::ARRAY_AS_PROPS); // For JBZoo/Data less 1.4.2
+        }
+
+        return $this->_jsonData;
     }
 
     /**
diff --git a/tests/ResponseTest.php b/tests/ResponseTest.php
new file mode 100644
index 0000000..cc32fe9
--- /dev/null
+++ b/tests/ResponseTest.php
@@ -0,0 +1,47 @@
+<?php
+/**
+ * JBZoo Http-Client
+ *
+ * This file is part of the JBZoo CCK package.
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @package   Http-Client
+ * @license   MIT
+ * @copyright Copyright (C) JBZoo.com,  All rights reserved.
+ * @link      https://github.com/JBZoo/Http-Client
+ */
+
+namespace JBZoo\PHPUnit;
+
+use JBZoo\HttpClient\Response;
+
+/**
+ * Class ResponseTest
+ * @package JBZoo\PHPUnit
+ */
+class ResponseTest extends PHPUnit
+{
+    protected $_json = '{"key-1":"value-1","key-2":"value-2"}';
+
+    public function testGetSameJSON()
+    {
+        $resp = new Response();
+
+        $resp->setBody($this->_json);
+
+        $json1 = $resp->getJSON();
+        $json2 = $resp->getJSON();
+
+        isSame('value-1', $resp->getJSON()->get('key-1'));
+        isSame('value-2', $resp->getJSON()->find('key-2'));
+        isSame($json1, $json2);
+        isSame($json1, $resp->getJSON());
+        isSame($json2, $resp->getJSON());
+
+        $resp->setBody($this->_json);
+        isNotSame($json1, $resp->getJSON());
+        isNotSame($json2, $resp->getJSON());
+        isSame($resp->getJSON(), $resp->getJSON());
+    }
+}