diff --git a/Gemfile b/Gemfile
index 82ca9c6..f097b2b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -119,7 +119,7 @@ group :development, :test do
 
   # Automatic Ruby code style checking tool.
   # Aims to enforce the community-driven Ruby Style Guide.
-  gem 'rubocop', '~> 0.63.1'
+  gem 'rubocop', '~> 0.67.2'
 
   # rspec-rails is a testing framework for Rails 3+
   gem 'rspec-rails', '~> 3.8'
diff --git a/Gemfile.lock b/Gemfile.lock
index 47d80df..c5138d0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -239,12 +239,11 @@ GEM
       oauth2 (~> 1.1)
       omniauth (~> 1.9)
     orm_adapter (0.5.0)
-    parallel (1.13.0)
-    parser (2.6.0.0)
+    parallel (1.17.0)
+    parser (2.6.2.1)
       ast (~> 2.4.0)
     pg (1.1.4)
     popper_js (1.14.5)
-    powerpack (0.1.2)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
@@ -253,6 +252,7 @@ GEM
       yard (~> 0.9.11)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
+    psych (3.1.0)
     public_suffix (3.0.3)
     puma (3.12.0)
     pundit (2.0.1)
@@ -334,14 +334,14 @@ GEM
       rspec-mocks (~> 3.8.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
-    rubocop (0.63.1)
+    rubocop (0.67.2)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.5, != 2.5.1.1)
-      powerpack (~> 0.1)
+      psych (>= 3.1.0)
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (~> 1.4.0)
+      unicode-display_width (>= 1.4.0, < 1.6)
     ruby-graphviz (1.2.4)
     ruby-progressbar (1.10.0)
     ruby_dep (1.5.0)
@@ -419,7 +419,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.5)
-    unicode-display_width (1.4.1)
+    unicode-display_width (1.5.0)
     warden (1.2.8)
       rack (>= 2.0.6)
     web-console (3.7.0)
@@ -479,7 +479,7 @@ DEPENDENCIES
   rest-client (~> 2.0)
   rolify (~> 5.2)
   rspec-rails (~> 3.8)
-  rubocop (~> 0.63.1)
+  rubocop (~> 0.67.2)
   sass-rails (~> 5.0)
   selenium-webdriver (~> 3.14)
   sentry-raven