diff --git a/Gemfile.lock b/Gemfile.lock
index 4f742ba57..60b317ed3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -544,7 +544,7 @@ GEM
       rubocop-ast (>= 0.3.0, < 1.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.3.0)
+    rubocop-ast (0.4.0)
       parser (>= 2.7.1.4)
     rubocop-rails (2.8.0)
       activesupport (>= 4.2.0)