diff --git a/Gemfile b/Gemfile
index c5e1c29..6efb8c3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -116,7 +116,7 @@ group :development do
   gem "overcommit", require: false
   gem "rails_best_practices", require: false
   gem "reek", require: false
-  gem "rubocop", '~> 0.86.0', require: false
+  gem "rubocop", '~> 0.91.1', require: false
   gem "rubocop-rails", require: false
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 46c3bc5..418346b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -208,7 +208,7 @@ GEM
       parser (>= 2.5.0.0, < 2.8, != 2.5.1.1)
       psych (~> 3.1.0)
       rainbow (>= 2.0, < 4.0)
-    regexp_parser (1.7.1)
+    regexp_parser (1.8.0)
     require_all (3.0.0)
     responders (3.0.1)
       actionpack (>= 5.0)
@@ -233,17 +233,17 @@ GEM
     rspec-support (3.9.3)
     rspec_junit_formatter (0.4.1)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (0.86.0)
+    rubocop (0.91.1)
       parallel (~> 1.10)
-      parser (>= 2.7.0.1)
+      parser (>= 2.7.1.1)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.7)
       rexml
-      rubocop-ast (>= 0.0.3, < 1.0)
+      rubocop-ast (>= 0.4.0, < 1.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.0.3)
-      parser (>= 2.7.0.1)
+    rubocop-ast (0.4.2)
+      parser (>= 2.7.1.4)
     rubocop-rails (2.6.0)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
@@ -347,7 +347,7 @@ DEPENDENCIES
   reek
   rspec-rails
   rspec_junit_formatter
-  rubocop (~> 0.86.0)
+  rubocop (~> 0.91.1)
   rubocop-rails
   sass-rails (~> 6)
   selenium-webdriver