syslogstash.gemspec in syslogstash-0.3.0 vs syslogstash.gemspec in syslogstash-0.4.0

@@ -19,10 +19,14 @@
 	s.homepage = "https://github.com/discourse/syslogstash"
 
 	s.files = `git ls-files -z`.split("\0").reject { |f| f =~ /^(G|spec|Rakefile)/ }
 	s.executables = ["syslogstash"]
 
-	s.required_ruby_version = ">= 2.0.0"
+	s.required_ruby_version = ">= 2.1.0"
+
+	s.add_runtime_dependency 'prometheus-client'
+	s.add_runtime_dependency 'puma'
+	s.add_runtime_dependency 'rack'
 
 	s.add_development_dependency 'bundler'
 	s.add_development_dependency 'github-release'
 	s.add_development_dependency 'guard-spork'
 	s.add_development_dependency 'guard-rspec'