diff --git a/Casks/guitar-pro.rb b/Casks/guitar-pro.rb
index 595e9e80b76..7498aa50de5 100644
--- a/Casks/guitar-pro.rb
+++ b/Casks/guitar-pro.rb
@@ -3,6 +3,7 @@ cask 'guitar-pro' do
   sha256 :no_check # required as upstream package is updated in-place
 
   url "https://alt-downloads.guitar-pro.com/gp7/stable/guitar-pro-#{version.major}-setup.pkg"
+  appcast 'https://www.guitar-pro.com/en/index.php?pg=download'
   name 'Guitar Pro'
   homepage 'https://www.guitar-pro.com/'