opentracing-instrumentation.gemspec in opentracing-instrumentation-0.1.8 vs opentracing-instrumentation.gemspec in opentracing-instrumentation-0.1.9

@@ -36,8 +36,10 @@
   spec.add_development_dependency 'rack', '~> 2.2.2'
   spec.add_development_dependency 'rake', '~> 13.0'
   spec.add_development_dependency 'redis', '~> 3.3.5'
   spec.add_development_dependency 'rspec', '~> 3.0'
   spec.add_development_dependency 'rubocop', '~> 0.80.0'
+  spec.add_development_dependency 'rubocop-performance', '~> 1.5.2'
   spec.add_development_dependency 'rubocop-rspec', '~> 1.38.1'
+  spec.add_development_dependency 'rubocop-thread_safety', '~> 0.3.4'
   spec.add_development_dependency 'thrift', '~> 0.11.0'
 end