licensed.gemspec in licensed-2.1.0 vs licensed.gemspec in licensed-2.2.0

@@ -26,9 +26,10 @@
   spec.add_dependency "licensee", "~> 9.10"
   spec.add_dependency "thor", "~> 0.19"
   spec.add_dependency "pathname-common_prefix", "~> 0.0.1"
   spec.add_dependency "tomlrb", "~> 1.2"
   spec.add_dependency "bundler", ">= 1.10"
+  spec.add_dependency "ruby-xxHash", "~> 0.4"
 
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "minitest", "~> 5.8"
   spec.add_development_dependency "mocha", "~> 1.0"
   spec.add_development_dependency "rubocop", "~> 0.49", "< 0.67"