diff --git a/lib/openvpn-status-web.rb b/lib/openvpn-status-web.rb
index 0bd7fcc..304b9d2 100755
--- a/lib/openvpn-status-web.rb
+++ b/lib/openvpn-status-web.rb
@@ -7,6 +7,7 @@ require 'logger'
 require 'ipaddr'
 require 'yaml'
 require 'rack'
+require 'rackup'
 require 'erb'
 require 'metriks'
 require 'better_errors' if ENV.fetch('RACK_ENV', nil) == 'development'
@@ -135,14 +136,14 @@ module OpenVPNStatusWeb
 
       Signal.trap('INT') do
         OpenVPNStatusWeb.logger.info 'Quitting...'
-        Rack::Handler::WEBrick.shutdown
+        Rackup::Handler::WEBrick.shutdown
       end
       Signal.trap('TERM') do
         OpenVPNStatusWeb.logger.info 'Quitting...'
-        Rack::Handler::WEBrick.shutdown
+        Rackup::Handler::WEBrick.shutdown
       end
 
-      Rack::Handler::WEBrick.run app, Host: config['host'], Port: config['port']
+      Rackup::Handler::WEBrick.run app, Host: config['host'], Port: config['port']
     end
   end
 end
diff --git a/openvpn-status-web.gemspec b/openvpn-status-web.gemspec
index 7345371..bdc52d7 100644
--- a/openvpn-status-web.gemspec
+++ b/openvpn-status-web.gemspec
@@ -27,7 +27,8 @@ Gem::Specification.new do |s|
   s.required_ruby_version = '>= 2.7'
 
   s.add_runtime_dependency 'metriks'
-  s.add_runtime_dependency 'rack', '~> 2.0'
+  s.add_runtime_dependency 'rack', '~> 3.0'
+  s.add_runtime_dependency 'rackup'
   s.add_runtime_dependency 'webrick', '>= 1.6.1'
 
   s.add_development_dependency 'better_errors'