diff --git a/Casks/w/wormhole.rb b/Casks/w/wormhole.rb
index 0cec9149eb..df007deb57 100644
--- a/Casks/w/wormhole.rb
+++ b/Casks/w/wormhole.rb
@@ -1,5 +1,5 @@
 cask "wormhole" do
-  version "1.6.4"
+  version "1.6.6"
   sha256 :no_check
 
   url "https://static.er.run/os/WormholeInstaller.dmg"