4me-sdk.gemspec in 4me-sdk-2.0.3 vs 4me-sdk.gemspec in 4me-sdk-2.0.4

@@ -29,9 +29,10 @@
   spec.add_runtime_dependency 'activesupport', '>= 4.2'
   spec.add_runtime_dependency 'gem_config', '>=0.3'
   spec.add_runtime_dependency 'mime-types', '>= 3.0'
 
   spec.add_development_dependency 'bundler'
+  spec.add_development_dependency 'json', '>= 2.6'
   spec.add_development_dependency 'rake', '~> 12'
   spec.add_development_dependency 'rspec', '~> 3.3'
   spec.add_development_dependency 'rubocop', '>= 0.49.0'
   spec.add_development_dependency 'simplecov', '~> 0'
   spec.add_development_dependency 'webmock', '~> 3'