diff --git a/README.md b/README.md
index e6201e4..a16e81d 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ This PHP 7.1 library provides a collection of [PSR-7](https://www.php-fig.org/ps
 * [`JsonResponse`](src/JsonResponse.php)
 * [`LocalFileResponse`](src/LocalFileResponse.php)
 * [`NotFoundResponse`](src/NotFoundResponse.php)
+* [`NotModifiedResponse`](src/NotModifiedResponse.php)
 * [`RedirectResponse`](src/RedirectResponse.php)
 * [`StreamResponse`](src/StreamResponse.php)
 * [`TextResponse`](src/TextResponse.php)
diff --git a/composer.json b/composer.json
index fbc6d92..ad71326 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
   "name": "codeinc/psr7-responses",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "A collection of PSR-7 responses",
   "homepage": "https://github.com/CodeIncHQ/Psr7Responses",
   "type": "library",
diff --git a/src/NotModifiedResponse.php b/src/NotModifiedResponse.php
new file mode 100644
index 0000000..23ffa51
--- /dev/null
+++ b/src/NotModifiedResponse.php
@@ -0,0 +1,45 @@
+<?php
+//
+// +---------------------------------------------------------------------+
+// | CODE INC. SOURCE CODE                                               |
+// +---------------------------------------------------------------------+
+// | Copyright (c) 2018 - Code Inc. SAS - All Rights Reserved.           |
+// | Visit https://www.codeinc.fr for more information about licensing.  |
+// +---------------------------------------------------------------------+
+// | NOTICE:  All information contained herein is, and remains the       |
+// | property of Code Inc. SAS. The intellectual and technical concepts  |
+// | contained herein are proprietary to Code Inc. SAS are protected by  |
+// | trade secret or copyright law. Dissemination of this information or |
+// | reproduction of this material is strictly forbidden unless prior    |
+// | written permission is obtained from Code Inc. SAS.                  |
+// +---------------------------------------------------------------------+
+//
+// Author:   Joan Fabrégat <joan@codeinc.fr>
+// Date:     08/10/2018
+// Project:  Psr7Responses
+//
+declare(strict_types=1);
+namespace CodeInc\Psr7Responses;
+
+/**
+ * Class NotModifiedResponse
+ *
+ * @package CodeInc\Psr7Responses
+ * @author Joan Fabrégat <joan@codeinc.fr>
+ */
+class NotModifiedResponse extends EmptyResponse
+{
+    /**
+     * NotModifiedResponse constructor.
+     *
+     * @param int $code
+     * @param string $reasonPhrase
+     * @param array $headers
+     * @param string $version
+     */
+    public function __construct(int $code = 304, string $reasonPhrase = '',
+        array $headers = [], string $version = '1.1')
+    {
+        parent::__construct($code, $reasonPhrase, $headers, $version);
+    }
+}
\ No newline at end of file