diff --git a/Gemfile.lock b/Gemfile.lock
index 5a945f18..6501abd8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -509,7 +509,7 @@ GEM
       rubocop-ast (>= 1.17.0, < 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-rails (2.14.2)
       activesupport (>= 4.2.0)