symfony
diff --git a/‎src/Symfony/Component/Notifier/Bridge/Telegram/TelegramTransport.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Notifier/Bridge/Telegram/TelegramTransport.php
+1-2Lines changed: 1 addition & 2 deletions b/‎src/Symfony/Component/Notifier/Bridge/Telegram/TelegramTransport.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Notifier/Bridge/Telegram/TelegramTransport.php
+1-2Lines changed: 1 addition & 2 deletions
diff --git a/‎src/Symfony/Component/Notifier/Bridge/Telegram/Tests/TelegramTransportTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Notifier/Bridge/Telegram/Tests/TelegramTransportTest.php
+2-2Lines changed: 2 additions & 2 deletions b/‎src/Symfony/Component/Notifier/Bridge/Telegram/Tests/TelegramTransportTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Notifier/Bridge/Telegram/Tests/TelegramTransportTest.php
+2-2Lines changed: 2 additions & 2 deletions
@@ -11,7 +11,6 @@
 
 namespace Symfony\Component\Notifier\Bridge\Telegram;
 
-use Symfony\Component\Notifier\Exception\LogicException;
 use Symfony\Component\Notifier\Exception\TransportException;
 use Symfony\Component\Notifier\Exception\UnsupportedMessageTypeException;
 use Symfony\Component\Notifier\Message\ChatMessage;
@@ -74,7 +73,7 @@ protected function doSend(MessageInterface $message): SentMessage
 
         if (!isset($options['parse_mode']) || TelegramOptions::PARSE_MODE_MARKDOWN_V2 === $options['parse_mode']) {
             $options['parse_mode'] = TelegramOptions::PARSE_MODE_MARKDOWN_V2;
-            $options['text'] = preg_replace('/([_*\[\]()~`>#+\-=|{}.!])/', '\\\\$1', $message->getSubject());
+            $options['text'] = preg_replace('/([_*\[\]()~`>#+\-=|{}.!\\\\])/', '\\\\$1', $message->getSubject());
         }
 
         if (isset($options['photo'])) {
 
@@ -316,7 +316,7 @@ public function testSendWithMarkdownShouldEscapeSpecialCharacters()
 
         $expectedBody = [
             'chat_id' => 'testChannel',
-            'text' => 'I contain special characters \_ \* \[ \] \( \) \~ \` \> \# \+ \- \= \| \{ \} \. \! to send\.',
+            'text' => 'I contain special characters \_ \* \[ \] \( \) \~ \` \> \# \+ \- \= \| \{ \} \. \! \\\\ to send\.',
             'parse_mode' => 'MarkdownV2',
         ];
 
@@ -328,7 +328,7 @@ public function testSendWithMarkdownShouldEscapeSpecialCharacters()
 
         $transport = self::createTransport($client, 'testChannel');
 
-        $transport->send(new ChatMessage('I contain special characters _ * [ ] ( ) ~ ` > # + - = | { } . ! to send.'));
+        $transport->send(new ChatMessage('I contain special characters _ * [ ] ( ) ~ ` > # + - = | { } . ! \\ to send.'));
     }
 
     public function testSendPhotoWithOptions()