diff --git a/Casks/mountain-duck.rb b/Casks/mountain-duck.rb
index d2ab21144b..2ff239ce7c 100644
--- a/Casks/mountain-duck.rb
+++ b/Casks/mountain-duck.rb
@@ -1,10 +1,10 @@
 cask 'mountain-duck' do
-  version '1.5.4.4763'
-  sha256 '199330fe1d95b4f4afa84fcf9538b8cd344f4c0bb14bcb8e2af9265042dea74d'
+  version '1.5.5.4797'
+  sha256 '76e173b2fbc954334497a9c88c658a2b57dd3cba5edfde3b8aaa3455080e5281'
 
   url "https://dist.mountainduck.io/Mountain%20Duck-#{version}.zip"
   appcast 'https://version.mountainduck.io/changelog.rss',
-          checkpoint: '94c43dec7779e0ed2be6356e2eccd812fdb120dcc433eeddbf4611f8048bc2c7'
+          checkpoint: 'c7f30408c9caab5a281857934febc781c278b2af4f1c258b42f091c796a447e5'
   name 'Mountain Duck'
   homepage 'https://mountainduck.io/'
   license :commercial