diff --git a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/IncomingUpdateDispatcher.php b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/IncomingUpdateDispatcher.php
index 225f54e..b3a993c 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/IncomingUpdateDispatcher.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/IncomingUpdateDispatcher.php
@@ -36,7 +36,7 @@ class IncomingUpdateDispatcher
      *
      * @param Update $update
      */
-    public function process(Update $update)
+    public function process(Update $update): void
     {
         if ($update->message && $update->message instanceof Message) {
             $chatType = $update->message->chat->type;
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/InlineQueryProcessor.php b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/InlineQueryProcessor.php
index b9d2fc5..741d883 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/InlineQueryProcessor.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/InlineQueryProcessor.php
@@ -27,7 +27,7 @@ class InlineQueryProcessor
         $this->client = $client;
     }
 
-    public function process(Query $inlineQuery)
+    public function process(Query $inlineQuery): void
     {
         if (mb_strlen($inlineQuery->query) < 2) {
             return;
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/MessageSender.php b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/MessageSender.php
index 9ad3eec..01dc51d 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/MessageSender.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/MessageSender.php
@@ -53,7 +53,8 @@ class MessageSender
         bool $disableWebPreview = true,
         bool $disableNotifications = false,
         string $parseMode = self::PARSE_MARKDOWN
-    ) {
+    ): void
+    {
         $text = $this->twig->render($template, $templateData);
 
         foreach ($accounts as $account) {
@@ -69,7 +70,8 @@ class MessageSender
         bool $disableWebPreview = true,
         bool $disableNotifications = false,
         string $parseMode = self::PARSE_MARKDOWN
-    ): bool {
+    ): bool
+    {
         $text = $this->twig->render($template, $templateData);
 
         return $this->sendMessage($account, $text, $parseMode, $keyboardMarkup, $disableWebPreview, $disableNotifications);
@@ -82,7 +84,8 @@ class MessageSender
         KeyboardMethods $keyboardMarkup = null,
         bool $disableWebPreview = false,
         bool $disableNotifications = false
-    ): bool {
+    ): bool
+    {
         return $this->sendMessageToChat($account->getChatId(), $text, $parseMode, $keyboardMarkup, $disableWebPreview, $disableNotifications);
     }
 
@@ -93,7 +96,8 @@ class MessageSender
         KeyboardMethods $keyboardMarkup = null,
         bool $disableWebPreview = false,
         bool $disableNotifications = false
-    ): bool {
+    ): bool
+    {
         $sendMessage = new SendMessage();
         $sendMessage->chat_id = (string)$chatId;
         $sendMessage->text = $text;
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/Notifier.php b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/Notifier.php
index 139b1ae..dbcf707 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/Notifier.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/Notifier.php
@@ -32,7 +32,7 @@ class Notifier
     /**
      * @param UserRenameEvent[] $userRenameEvents
      */
-    public function sendUsersRenamedNotification(array $userRenameEvents)
+    public function sendUsersRenamedNotification(array $userRenameEvents): void
     {
         $accounts = $this->accountsRepo->findBy(['renameNotification' => true]);
 
@@ -46,7 +46,7 @@ class Notifier
      * @param User[] $subscribed
      * @param User[] $unsubscribed
      */
-    public function sendUserSubscribersUpdatedNotification(User $user, array $subscribed, array $unsubscribed)
+    public function sendUserSubscribersUpdatedNotification(User $user, array $subscribed, array $unsubscribed): bool
     {
         /** @var Account $account */
         $account = $this->accountsRepo->findOneBy(
@@ -57,10 +57,10 @@ class Notifier
         );
 
         if (null === $account) {
-            return;
+            return false;
         }
 
-        $this->messenger->sendTemplatedMessage(
+        return $this->messenger->sendTemplatedMessage(
             $account,
             '@SkobkinPointTools/Telegram/user_subscribers_updated_notification.md.twig',
             [
diff --git a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/PrivateMessageProcessor.php b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/PrivateMessageProcessor.php
index 5455c04..f0e7d71 100644
--- a/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/PrivateMessageProcessor.php
+++ b/src/Skobkin/Bundle/PointToolsBundle/Service/Telegram/PrivateMessageProcessor.php
@@ -89,7 +89,7 @@ class PrivateMessageProcessor
         $this->pointUserId = $pointUserId;
     }
 
-    public function process(Message $message)
+    public function process(Message $message): void
     {
         if (!IncomingUpdateDispatcher::CHAT_TYPE_PRIVATE === $message->chat->type) {
             throw new \LogicException('This service can process only private chat messages');
@@ -183,7 +183,7 @@ class PrivateMessageProcessor
         return false;
     }
 
-    private function processLink(Account $account, array $words)
+    private function processLink(Account $account, array $words): void
     {
         if (array_key_exists(2, $words)) {
             if ($this->linkAccount($account, $words[1], $words[2])) {
@@ -198,7 +198,7 @@ class PrivateMessageProcessor
         }
     }
 
-    private function processMe(Account $account)
+    private function processMe(Account $account): void
     {
         if ($user = $account->getUser()) {
             $this->sendUserEvents($account, $user);
@@ -207,7 +207,7 @@ class PrivateMessageProcessor
         }
     }
 
-    private function processLast(Account $account, array $words)
+    private function processLast(Account $account, array $words): void
     {
         if (array_key_exists(1, $words)) {
             if (null !== $user = $this->userRepo->findUserByLogin($words[1])) {
@@ -220,7 +220,7 @@ class PrivateMessageProcessor
         }
     }
 
-    private function processSub(Account $account, array $words)
+    private function processSub(Account $account, array $words): void
     {
         if (array_key_exists(1, $words)) {
             if (null !== $user = $this->userRepo->findUserByLogin($words[1])) {
@@ -237,12 +237,12 @@ class PrivateMessageProcessor
         }
     }
 
-    private function processStats(Account $account)
+    private function processStats(Account $account): void
     {
         $this->sendStats($account);
     }
 
-    private function processSet(Account $account, array $words)
+    private function processSet(Account $account, array $words): void
     {
         $keyboard = new ReplyKeyboardMarkup();
 
@@ -288,24 +288,24 @@ class PrivateMessageProcessor
     /**
      * Processes exit from keyboard menus and removes the keyboard
      */
-    private function processExit(Account $account)
+    private function processExit(Account $account): void
     {
         $keyboardRemove = new ReplyKeyboardRemove();
 
         $this->messenger->sendMessage($account, 'Done', MessageSender::PARSE_PLAIN, $keyboardRemove);
     }
 
-    private function processHelp(Account $account)
+    private function processHelp(Account $account): void
     {
         $this->sendHelp($account);
     }
 
-    private function sendAccountLinked(Account $account)
+    private function sendAccountLinked(Account $account): void
     {
         $this->messenger->sendMessage($account, 'Account linked. Try using /me now.');
     }
 
-    private function sendUserSubscribers(Account $account, User $user)
+    private function sendUserSubscribers(Account $account, User $user): void
     {
         $subscribers = [];
         foreach ($user->getSubscribers() as $subscription) {
@@ -322,7 +322,7 @@ class PrivateMessageProcessor
         );
     }
 
-    private function sendUserEvents(Account $account, User $user)
+    private function sendUserEvents(Account $account, User $user): void
     {
         $events = $this->subscriptionEventRepo->getUserLastSubscribersEvents($user, 10);
 
@@ -336,14 +336,14 @@ class PrivateMessageProcessor
         );
     }
 
-    private function sendGlobalEvents(Account $account)
+    private function sendGlobalEvents(Account $account): void
     {
         $events = $this->subscriptionEventRepo->getLastSubscriptionEvents(10);
 
         $this->messenger->sendTemplatedMessage($account, '@SkobkinPointTools/Telegram/last_global_subscriptions.md.twig', ['events' => $events]);
     }
 
-    private function sendStats(Account $account)
+    private function sendStats(Account $account): void
     {
         $this->messenger->sendTemplatedMessage(
             $account,
@@ -358,12 +358,12 @@ class PrivateMessageProcessor
         );
     }
 
-    private function sendHelp(Account $account)
+    private function sendHelp(Account $account): void
     {
         $this->messenger->sendTemplatedMessage($account, '@SkobkinPointTools/Telegram/help.md.twig');
     }
 
-    private function sendError(Account $account, string $title, string $text = '')
+    private function sendError(Account $account, string $title, string $text = ''): void
     {
         $this->messenger->sendTemplatedMessage(
             $account,