diff --git a/.rubocop.yml b/.rubocop.yml
index c7f9eb66ee..57fdbcbd80 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,7 +1,7 @@
 inherit_gem:
   rubocop-github:
-    - config/default_edge.yml
-    - config/rails_edge.yml
+    - config/default.yml
+    - config/rails.yml
 
 inherit_from: .rubocop_todo.yml
 
diff --git a/Gemfile b/Gemfile
index e871759954..cdcdef5b39 100644
--- a/Gemfile
+++ b/Gemfile
@@ -91,10 +91,8 @@ group :development, :test do
   gem "knapsack",                 "~> 1.14", ">= 1.14.1"
   gem "rails-controller-testing", "~> 1.0", ">= 1.0.4"
   gem "rspec-rails",              ">= 4.0.0.beta3"
-  gem "rubocop",                  "~> 0.52", require: false
-  gem 'rubocop-github',           "~> 0.10", require: false
-  gem "rubocop-performance",      "~> 1.4", :require => false
-  gem "rubocop-rails",            "~> 2.3", :require => false
+  gem "rubocop",                  "~> 0.52", :require => false
+  gem "rubocop-github",           "~> 0.10", :require => false
   gem "scss_lint",                "~> 0.54.0", require: false
   gem "spring",                   "~> 2.1", ">= 2.1.0"
   gem "spring-watcher-listen",    "~> 2.0", ">= 2.0.1"
diff --git a/Gemfile.lock b/Gemfile.lock
index 34c69193f8..013b16fcae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -292,7 +292,7 @@ GEM
       oauth2 (~> 1.0)
       omniauth (~> 1.2)
     os (1.0.1)
-    parallel (1.19.0)
+    parallel (1.19.1)
     parser (2.6.5.0)
       ast (~> 2.4.0)
     peek (1.0.1)
@@ -432,11 +432,6 @@ GEM
       unicode-display_width (>= 1.4.0, < 1.7)
     rubocop-github (0.12.0)
       rubocop (~> 0.59)
-    rubocop-performance (1.5.1)
-      rubocop (>= 0.71.0)
-    rubocop-rails (2.3.2)
-      rack (>= 1.1)
-      rubocop (>= 0.72.0)
     ruby-progressbar (1.10.1)
     ruby_dep (1.5.0)
     safe_yaml (1.0.5)
@@ -590,8 +585,6 @@ DEPENDENCIES
   rspec-rails (>= 4.0.0.beta3)
   rubocop (~> 0.52)
   rubocop-github (~> 0.10)
-  rubocop-performance (~> 1.4)
-  rubocop-rails (~> 2.3)
   ruby-progressbar (~> 1.8, >= 1.8.1)
   sass-rails (~> 6.0)
   scss_lint (~> 0.54.0)
diff --git a/vendor/cache/parallel-1.19.0.gem b/vendor/cache/parallel-1.19.0.gem
deleted file mode 100644
index 69cabf2826..0000000000
Binary files a/vendor/cache/parallel-1.19.0.gem and /dev/null differ
diff --git a/vendor/cache/parallel-1.19.1.gem b/vendor/cache/parallel-1.19.1.gem
new file mode 100644
index 0000000000..3d9358baeb
Binary files /dev/null and b/vendor/cache/parallel-1.19.1.gem differ
diff --git a/vendor/cache/rubocop-performance-1.5.1.gem b/vendor/cache/rubocop-performance-1.5.1.gem
deleted file mode 100644
index 764c68cb34..0000000000
Binary files a/vendor/cache/rubocop-performance-1.5.1.gem and /dev/null differ
diff --git a/vendor/cache/rubocop-rails-2.3.2.gem b/vendor/cache/rubocop-rails-2.3.2.gem
deleted file mode 100644
index 9546e6269a..0000000000
Binary files a/vendor/cache/rubocop-rails-2.3.2.gem and /dev/null differ