diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index ace4ad2edc..ff21cfd6d8 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -132,7 +132,7 @@ GEM
       rubocop-ast (>= 1.16.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.17.0)
+    rubocop-ast (1.18.0)
       parser (>= 3.1.1.0)
     rubocop-performance (1.13.3)
       rubocop (>= 1.7.0, < 2.0)