diff --git a/Casks/telegram.rb b/Casks/telegram.rb
index c616fa0aab5..b0d1347ba8c 100644
--- a/Casks/telegram.rb
+++ b/Casks/telegram.rb
@@ -1,6 +1,6 @@
 cask :v1 => 'telegram' do
-  version '0.8.7'
-  sha256 'ad342077d93af9e1d62b746551a019fb7ee916fd2c8ba757c053c149f58b71ab'
+  version '0.8.21'
+  sha256 '343176aabd1a4451bda97d84e9f6090c973eb7613c0cdbfa464e0eba301fbaaa'
 
   # tdesktop.com is the official download host per the vendor homepage
   url "https://updates.tdesktop.com/tmac/tsetup.#{version}.dmg"