diff --git a/Casks/s/sync.rb b/Casks/s/sync.rb
index a4ebad0660..37a59e84bf 100644
--- a/Casks/s/sync.rb
+++ b/Casks/s/sync.rb
@@ -1,5 +1,5 @@
 cask "sync" do
-  version "2.2.20"
+  version "2.2.21"
   sha256 :no_check
 
   url "https://www.sync.com/download/apple/Sync.dmg"