diff --git a/Casks/muse.rb b/Casks/muse.rb
index 5cedcb3c8bd..2fcddd6bf98 100644
--- a/Casks/muse.rb
+++ b/Casks/muse.rb
@@ -1,13 +1,13 @@
-cask 'muse' do
-  version '4.1.1'
-  sha256 '809ba172f9929b4b0d49bfbe5f9210946013761f3cdd27862fc887b31ae5d96c'
+cask "muse" do
+  version "4.1.1"
+  sha256 "809ba172f9929b4b0d49bfbe5f9210946013761f3cdd27862fc887b31ae5d96c"
 
   url "https://github.com/xzzz9097/Muse/releases/download/v#{version}/Muse.app.zip"
-  appcast 'https://github.com/xzzz9097/Muse/releases.atom'
-  name 'Muse'
-  homepage 'https://github.com/xzzz9097/Muse'
+  appcast "https://github.com/xzzz9097/Muse/releases.atom"
+  name "Muse"
+  homepage "https://github.com/xzzz9097/Muse"
 
-  depends_on macos: '>= :sierra'
+  depends_on macos: ">= :sierra"
 
-  app 'Muse.app'
+  app "Muse.app"
 end