diff --git a/src/api/Gemfile.lock b/src/api/Gemfile.lock
index 3f48d2315ae..662ded88d80 100644
--- a/src/api/Gemfile.lock
+++ b/src/api/Gemfile.lock
@@ -398,7 +398,7 @@ GEM
     rubocop-performance (1.15.1)
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
-    rubocop-rails (2.17.2)
+    rubocop-rails (2.17.3)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.33.0, < 2.0)
diff --git a/src/api/spec/rails_helper.rb b/src/api/spec/rails_helper.rb
index 53169689c4f..d31cab1dfec 100644
--- a/src/api/spec/rails_helper.rb
+++ b/src/api/spec/rails_helper.rb
@@ -26,7 +26,7 @@
   config.include Haml::Helpers
 
   # load ActiveRecord fixtures
-  config.fixture_path = "#{::Rails.root}/spec/fixtures"
+  config.fixture_path = Rails.root.join('spec/fixtures')
 
   # set spec type based on their file location
   config.infer_spec_type_from_file_location!
diff --git a/src/api/vendor/cache/rubocop-rails-2.17.2.gem b/src/api/vendor/cache/rubocop-rails-2.17.2.gem
deleted file mode 100644
index 18e53bded98..00000000000
Binary files a/src/api/vendor/cache/rubocop-rails-2.17.2.gem and /dev/null differ
diff --git a/src/api/vendor/cache/rubocop-rails-2.17.3.gem b/src/api/vendor/cache/rubocop-rails-2.17.3.gem
new file mode 100644
index 00000000000..3dd889ae290
Binary files /dev/null and b/src/api/vendor/cache/rubocop-rails-2.17.3.gem differ