diff --git a/app/config/config.yml b/app/config/config.yml
index e2c9412..3b8eaa3 100644
--- a/app/config/config.yml
+++ b/app/config/config.yml
@@ -27,7 +27,6 @@ framework:
         engines: ['twig']
     default_locale:  "%locale%"
     trusted_hosts:   ~
-    trusted_proxies: ~
     session:
         # handler_id set to null will use default session handler from php.ini
         handler_id:  ~
diff --git a/app/config/config_dev.yml b/app/config/config_dev.yml
index c8c5ec1..d5f0878 100644
--- a/app/config/config_dev.yml
+++ b/app/config/config_dev.yml
@@ -18,12 +18,12 @@ monolog:
             path: "%kernel.logs_dir%/%kernel.environment%.log"
             max_files: 2
             level: debug
-            channels: [!event]
+            channels: ['!event']
         console:
             type:   console
             verbosity_levels:
                 VERBOSITY_NORMAL: WARNING
-            channels: [!event, !doctrine]
+            channels: ['!event', '!doctrine']
         # uncomment to get logging in your browser
         # you may have to allow bigger header sizes in your Web server configuration
         #firephp:
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Command/ImportUsersCommand.php b/src/Skobkin/Bundle/PointToolsBundle/Command/ImportUsersCommand.php
index ed690c9..1f76a38 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Command/ImportUsersCommand.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Command/ImportUsersCommand.php
@@ -2,7 +2,7 @@
 
 namespace Skobkin\Bundle\PointToolsBundle\Command;
 
-use Doctrine\ORM\EntityManager;
+use Doctrine\ORM\{EntityManager, EntityManagerInterface};
 use Skobkin\Bundle\PointToolsBundle\Entity\User;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\{InputInterface, InputArgument, InputOption};
@@ -23,7 +23,7 @@ class ImportUsersCommand extends Command
     /** @var EntityManager */
     private $em;
 
-    public function __construct(EntityManager $em)
+    public function __construct(EntityManagerInterface $em)
     {
         $this->em = $em;
 
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Command/TelegramWebHookCommand.php b/src/Skobkin/Bundle/PointToolsBundle/Command/TelegramWebHookCommand.php
index 7a0fe6a..794edd2 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Command/TelegramWebHookCommand.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Command/TelegramWebHookCommand.php
@@ -2,7 +2,6 @@
 
 namespace Skobkin\Bundle\PointToolsBundle\Command;
 
-use Symfony\Bundle\FrameworkBundle\Routing\Router;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\{InputArgument, InputInterface};
 use Symfony\Component\Console\Output\OutputInterface;
@@ -22,7 +21,7 @@ class TelegramWebHookCommand extends Command
     /** @var TgLog */
     private $client;
 
-    /** @var Router */
+    /** @var UrlGeneratorInterface */
     private $router;
 
     /** @var string */
@@ -31,7 +30,7 @@ class TelegramWebHookCommand extends Command
     /** @var int */
     private $maxConnections;
 
-    public function __construct(TgLog $client, Router $router, string $telegramToken, int $telegramWebhookMaxConnections)
+    public function __construct(TgLog $client, UrlGeneratorInterface $router, string $telegramToken, int $telegramWebhookMaxConnections)
     {
         parent::__construct();
 
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Controller/Api/CrawlerController.php b/src/Skobkin/Bundle/PointToolsBundle/Controller/Api/CrawlerController.php
index 7ecc95a..bf6dd03 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Controller/Api/CrawlerController.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Controller/Api/CrawlerController.php
@@ -2,8 +2,8 @@
 
 namespace Skobkin\Bundle\PointToolsBundle\Controller\Api;
 
-use Doctrine\ORM\EntityManager;
-use JMS\Serializer\Serializer;
+use Doctrine\ORM\EntityManagerInterface;
+use JMS\Serializer\SerializerInterface;
 use Skobkin\Bundle\PointToolsBundle\DTO\Api\PostsPage;
 use Skobkin\Bundle\PointToolsBundle\Service\Factory\Blogs\PostFactory;
 use Symfony\Component\HttpFoundation\{Request, Response};
@@ -18,7 +18,7 @@ class CrawlerController extends AbstractApiController
         $this->crawlerToken = $crawlerToken;
     }
 
-    public function receiveAllPageAction(Request $request, Serializer $serializer, PostFactory $postFactory, EntityManager $em): Response
+    public function receiveAllPageAction(Request $request, SerializerInterface $serializer, PostFactory $postFactory, EntityManagerInterface $em): Response
     {
         $remoteToken = $request->request->get('token');
 
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Service/Api/AbstractApi.php b/src/Skobkin/Bundle/PointToolsBundle/Service/Api/AbstractApi.php
index 73dc076..10be5a7 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Service/Api/AbstractApi.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Service/Api/AbstractApi.php
@@ -4,7 +4,9 @@ namespace Skobkin\Bundle\PointToolsBundle\Service\Api;
 
 use GuzzleHttp\ClientInterface;
 use GuzzleHttp\Exception\TransferException;
-use JMS\Serializer\{DeserializationContext, Serializer};
+use JMS\Serializer\{
+    DeserializationContext, SerializerInterface
+};
 use Psr\Http\Message\{ResponseInterface, StreamInterface};
 use Psr\Log\LoggerInterface;
 use Skobkin\Bundle\PointToolsBundle\Exception\Api\{ForbiddenException, NetworkException, NotFoundException, ServerProblemException, UnauthorizedException};
@@ -18,7 +20,7 @@ class AbstractApi
     protected $client;
 
     /**
-     * @var Serializer
+     * @var SerializerInterface
      */
     protected $serializer;
 
@@ -38,7 +40,7 @@ class AbstractApi
     protected $csRfToken;
 
 
-    public function __construct(ClientInterface $httpClient, Serializer $serializer, LoggerInterface $logger)
+    public function __construct(ClientInterface $httpClient, SerializerInterface $serializer, LoggerInterface $logger)
     {
         $this->client = $httpClient;
         $this->serializer = $serializer;
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Service/Api/PostApi.php b/src/Skobkin/Bundle/PointToolsBundle/Service/Api/PostApi.php
index 69b5812..e9875a4 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Service/Api/PostApi.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Service/Api/PostApi.php
@@ -3,7 +3,7 @@
 namespace Skobkin\Bundle\PointToolsBundle\Service\Api;
 
 use GuzzleHttp\ClientInterface;
-use JMS\Serializer\Serializer;
+use JMS\Serializer\SerializerInterface;
 use Psr\Log\LoggerInterface;
 use Skobkin\Bundle\PointToolsBundle\Service\Factory\Blogs\PostFactory;
 
@@ -18,7 +18,7 @@ class PostApi extends AbstractApi
     private $postFactory;
 
 
-    public function __construct(ClientInterface $httpClient, Serializer $serializer, LoggerInterface $logger, PostFactory $postFactory)
+    public function __construct(ClientInterface $httpClient, SerializerInterface $serializer, LoggerInterface $logger, PostFactory $postFactory)
     {
         parent::__construct($httpClient, $serializer, $logger);
 
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Service/Api/UserApi.php b/src/Skobkin/Bundle/PointToolsBundle/Service/Api/UserApi.php
index 7bf6404..fc265e0 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Service/Api/UserApi.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Service/Api/UserApi.php
@@ -3,7 +3,9 @@
 namespace Skobkin\Bundle\PointToolsBundle\Service\Api;
 
 use GuzzleHttp\ClientInterface;
-use JMS\Serializer\{DeserializationContext, Serializer};
+use JMS\Serializer\{
+    DeserializationContext, SerializerInterface
+};
 use Psr\Log\LoggerInterface;
 use Skobkin\Bundle\PointToolsBundle\DTO\Api\{Auth, User as UserDTO};
 use Skobkin\Bundle\PointToolsBundle\Entity\User;
@@ -22,7 +24,7 @@ class UserApi extends AbstractApi
      */
     private $userFactory;
 
-    public function __construct(ClientInterface $httpClient, Serializer $serializer, LoggerInterface $logger, UserFactory $userFactory)
+    public function __construct(ClientInterface $httpClient, SerializerInterface $serializer, LoggerInterface $logger, UserFactory $userFactory)
     {
         parent::__construct($httpClient, $serializer, $logger);