diff --git a/alchemy_cms.gemspec b/alchemy_cms.gemspec
index 259f6e02b5..7b4a62e720 100644
--- a/alchemy_cms.gemspec
+++ b/alchemy_cms.gemspec
@@ -58,7 +58,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency "capybara", ["~> 3.0"]
   gem.add_development_dependency "capybara-screenshot", ["~> 1.0"]
   gem.add_development_dependency "factory_bot_rails", ["~> 6.0"]
-  gem.add_development_dependency "puma", ["~> 5.0"]
+  gem.add_development_dependency "puma", ["~> 6.0"]
   gem.add_development_dependency "rails-controller-testing", ["~> 1.0"]
   gem.add_development_dependency "rspec-activemodel-mocks", ["~> 1.0"]
   gem.add_development_dependency "rspec-rails", [">= 4.0.0.beta2"]