Gemfile in oscal-0.1.0 vs Gemfile in oscal-0.1.1

@@ -8,5 +8,7 @@
 gem "rake", "~> 13.0"
 
 gem "rspec", "~> 3.0"
 
 gem "rubocop", "~> 1.21"
+
+gem "rubocop-performance", "~> 1.16"