diff --git a/src/TelegramRequest.php b/src/TelegramRequest.php
index 7b8313f0..a221b48b 100644
--- a/src/TelegramRequest.php
+++ b/src/TelegramRequest.php
@@ -185,7 +185,7 @@ public function setHeaders(array $headers): self
     public function getDefaultHeaders(): array
     {
         return [
-            'User-Agent' => 'Telegram Bot PHP SDK v'.Api::VERSION.' - (https://github.com/irazasyed/telegram-bot-sdk)',
+            'User-Agent' => 'Telegram Bot PHP SDK v'.Api::VERSION.' (https://github.com/irazasyed/telegram-bot-sdk)',
         ];
     }