diff --git a/Library/Homebrew/cask/utils.rb b/Library/Homebrew/cask/utils.rb
index e47510ca3c..74a531025b 100644
--- a/Library/Homebrew/cask/utils.rb
+++ b/Library/Homebrew/cask/utils.rb
@@ -2,7 +2,6 @@
 # frozen_string_literal: true
 
 require "utils/user"
-require "yaml"
 require "open3"
 require "stringio"