diff --git a/Gemfile b/Gemfile
index 7609b85a..562298cf 100644
--- a/Gemfile
+++ b/Gemfile
@@ -52,7 +52,7 @@ end
 group :development, :test do
   gem 'byebug'
   gem 'listen'
-  gem 'rubocop', '~> 1.7', require: false
+  gem 'rubocop', '~> 1.8', require: false
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 2b9661a9..14545564 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -237,15 +237,15 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.10.0)
     rspec-support (3.10.1)
-    rubocop (1.7.0)
+    rubocop (1.8.1)
       parallel (~> 1.10)
-      parser (>= 2.7.1.5)
+      parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml
       rubocop-ast (>= 1.2.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 2.0)
+      unicode-display_width (>= 1.4.0, < 3.0)
     rubocop-ast (1.4.0)
       parser (>= 2.7.1.5)
     ruby-progressbar (1.11.0)
@@ -354,7 +354,7 @@ DEPENDENCIES
   rails-dom-testing (~> 2.0.0)
   rails_autolink
   rspec-expectations
-  rubocop (~> 1.7)
+  rubocop (~> 1.8)
   sanitize (~> 5.2)
   sassc-rails (~> 2.1.2)
   simplecov