diff --git a/README.md b/README.md
index 7d58376..98f40f1 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,33 @@
-# atol
\ No newline at end of file
+# API клиент для сервиса фискализации платежей АТОЛ Онлайн
+
+Пример использования:
+
+```php
+$atol = new \AtolOnlineClient\AtolOnline();
+
+$client = new \Guzzle\Http\Client();
+$connection = new \AtolOnlineClient\Configuration\Connection();
+$connection->version = \AtolOnlineClient\AtolOnlineApi::API_VERSION_V4;
+$connection->login = 'login';
+$connection->pass = 'pass';
+$connection->enabled = true;
+$connection->group = 'group';
+
+$config = new \AtolOnlineClient\Configuration();
+$config->connections = [$connection];
+
+$api = $this->atol->createApi($client, $connection);
+//$api->setLogger();
+//$api->setCache();
+$request = new \AtolOnlineClient\Request\V4\PaymentReceiptRequest();
+/// ...
+/// собираем объект запроса
+///
+$paymentReceiptRequest = $atol->serializeOperationRequest($request);
+
+$response = $atol->getApi()->sell($paymentReceiptRequest);
+
+if ($response) {
+    $postOperationResponse = $atol->deserializeOperationResponse($response);
+}
+```
diff --git a/composer.json b/composer.json
index 240e719..5e03e3a 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         "php": ">=7.1",
         "ext-curl": "*",
         "guzzle/guzzle": "~3.7",
-        "jms/serializer": "~0.12 || ~1.12",
+        "jms/serializer": "~0.12 || ~1.4",
         "symfony/validator": "2.8.*"
     },
     "require-dev": {