diff --git a/Gemfile.lock b/Gemfile.lock
index 63c2ec2..c4c0c1b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -66,13 +66,16 @@ GEM
     rspec-expectations (2.99.2)
       diff-lcs (>= 1.1.3, < 2.0)
     rspec-mocks (2.99.4)
-    rubocop (0.83.0)
+    rubocop (0.84.0)
       parallel (~> 1.10)
       parser (>= 2.7.0.1)
       rainbow (>= 2.2.2, < 4.0)
       rexml
+      rubocop-ast (>= 0.0.3)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
+    rubocop-ast (0.0.3)
+      parser (>= 2.7.0.1)
     rubocop-checkstyle_formatter (0.4.0)
       rubocop (>= 0.35.1)
     ruby-progressbar (1.10.1)