diff --git a/Gemfile.lock b/Gemfile.lock
index 9e07974..9a24f99 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -270,10 +270,11 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.30.0)
       parser (>= 3.2.1.0)
-    rubocop-rails (2.17.4)
+    rubocop-rails (2.23.1)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.33.0, < 2.0)
+      rubocop-ast (>= 1.30.0, < 2.0)
     ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)