diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index 91a6eb26eac1e3a3c1c4967fd62a6108ccbf22ab..4082da7ab9cf5325f9d98aeff4a98432d91094e9 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -107,7 +107,7 @@ GEM
       rubocop-ast (>= 0.3.0, < 1.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.3.0)
+    rubocop-ast (0.4.0)
       parser (>= 2.7.1.4)
     rubocop-performance (1.8.0)
       rubocop (>= 0.87.0)