rzo.gemspec in rzo-0.3.0 vs rzo.gemspec in rzo-0.4.0

@@ -40,7 +40,8 @@
   spec.add_development_dependency 'guard-rubocop', '~> 1.3'
   spec.add_development_dependency 'guard-yard', '~> 2.2'
   spec.add_development_dependency 'guard-shell', '~> 0.7'
   spec.add_development_dependency 'simplecov', '~> 0.14'
   spec.add_dependency 'json', '~> 2.1'
+  spec.add_dependency 'json-schema', '~> 2.8'
   spec.add_dependency 'deep_merge', '~> 1.1'
 end