gitlab-exporter.gemspec in gitlab-exporter-9.1.0 vs gitlab-exporter.gemspec in gitlab-exporter-10.0.0

@@ -20,9 +20,10 @@
   s.homepage      = "http://gitlab.com"
   s.license       = "MIT"
 
   s.add_runtime_dependency "connection_pool", "~> 2.2.1"
   s.add_runtime_dependency "pg", "~> 1.1"
+  s.add_runtime_dependency "puma", "~> 5.1.1"
   s.add_runtime_dependency "quantile", "~> 0.2.0"
   s.add_runtime_dependency "redis", "~> 4.1.2"
   s.add_runtime_dependency "redis-namespace", "~> 1.6.0"
   s.add_runtime_dependency "sidekiq", "~> 5.2.1"
   s.add_runtime_dependency "sinatra", "~> 2.0.4"