diff --git a/Casks/telegram-desktop-dev.rb b/Casks/telegram-desktop-dev.rb
index 55f46e6f9..d405b8f06 100644
--- a/Casks/telegram-desktop-dev.rb
+++ b/Casks/telegram-desktop-dev.rb
@@ -1,12 +1,14 @@
 cask 'telegram-desktop-dev' do
-  version '0.9.55'
-  sha256 '0585d11681400956223c1c0fbdc62fecdda8f6aeca29eb9ed0cf7fd7e199806f'
+  version '0.9.57'
+  sha256 '05b76d616b6bb2f8f15f0b9aa4885537fcc65f54b72fba2ed05453524175fc76'
 
   url "https://updates.tdesktop.com/tmac/tsetup.#{version}.dmg"
   name 'Telegram'
   homepage 'https://tdesktop.com/'
   license :gpl
 
+  depends_on macos: '>= :mountain_lion'
+
   # Renamed to avoid conflict with telegram
   app 'Telegram.app', target: 'Telegram Desktop.app'
 end