diff --git a/Casks/sizeup.rb b/Casks/sizeup.rb
index bf58d961f77..638a793a23d 100644
--- a/Casks/sizeup.rb
+++ b/Casks/sizeup.rb
@@ -4,7 +4,7 @@ cask 'sizeup' do
 
   url "https://www.irradiatedsoftware.com/downloads/SizeUp_#{version}.zip"
   appcast 'https://www.irradiatedsoftware.com/updates/profiles/sizeup.php',
-          :sha256 => '563a7a8eb8623b0af56921f32407cfbc83752edc5a0f2dfe1eff73be7525c2d6'
+          :sha256 => 'cb9191cb1c5cc0dc8fa7863e453064c4f615425240fc4c34bf0b50e0138f44ff'
   name 'SizeUp'
   homepage 'https://www.irradiatedsoftware.com/sizeup/'
   license :commercial