diff --git a/Gemfile.lock b/Gemfile.lock
index ec0fe09b8..7d36e9fc3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -666,11 +666,11 @@ 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 (0.4.2)
       parser (>= 2.7.1.4)
     rubocop-performance (1.8.0)
       rubocop (>= 0.87.0)
-    rubocop-rails (2.8.0)
+    rubocop-rails (2.8.1)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 0.87.0)
diff --git a/vendor/cache/rubocop-ast-0.3.0.gem b/vendor/cache/rubocop-ast-0.3.0.gem
deleted file mode 100644
index 391e5599e..000000000
Binary files a/vendor/cache/rubocop-ast-0.3.0.gem and /dev/null differ
diff --git a/vendor/cache/rubocop-ast-0.4.2.gem b/vendor/cache/rubocop-ast-0.4.2.gem
new file mode 100644
index 000000000..c51e522ad
Binary files /dev/null and b/vendor/cache/rubocop-ast-0.4.2.gem differ
diff --git a/vendor/cache/rubocop-rails-2.8.0.gem b/vendor/cache/rubocop-rails-2.8.0.gem
deleted file mode 100644
index eb0792252..000000000
Binary files a/vendor/cache/rubocop-rails-2.8.0.gem and /dev/null differ
diff --git a/vendor/cache/rubocop-rails-2.8.1.gem b/vendor/cache/rubocop-rails-2.8.1.gem
new file mode 100644
index 000000000..54753b8f1
Binary files /dev/null and b/vendor/cache/rubocop-rails-2.8.1.gem differ