diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index e2bde266a..51eeef1cd 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -98,7 +98,7 @@ GEM
     rspec-support (3.9.3)
     rspec-wait (0.0.9)
       rspec (>= 3, < 4)
-    rubocop (0.89.1)
+    rubocop (0.90.0)
       parallel (~> 1.10)
       parser (>= 2.7.1.1)
       rainbow (>= 2.2.2, < 4.0)