sidekiq_prometheus.gemspec in sidekiq_prometheus-1.3.0 vs sidekiq_prometheus.gemspec in sidekiq_prometheus-1.4.0

@@ -28,6 +28,7 @@
   spec.add_development_dependency 'rubocop', '~> 0.58.0'
 
   spec.add_runtime_dependency 'prometheus-client', '~> 2.0'
   spec.add_runtime_dependency 'rack'
   spec.add_runtime_dependency 'sidekiq', '> 5.1'
+  spec.add_runtime_dependency 'webrick'
 end