diff --git a/cyclonedx-ruby.gemspec b/cyclonedx-ruby.gemspec
index 087712e..eea14c0 100644
--- a/cyclonedx-ruby.gemspec
+++ b/cyclonedx-ruby.gemspec
@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency('activesupport', '~> 7.0')
   spec.add_development_dependency 'rake', '~> 13'
   spec.add_development_dependency 'rspec', '~> 3.12'
-  spec.add_development_dependency 'cucumber', '~> 8.0'
+  spec.add_development_dependency 'cucumber', '~> 9.1'
   spec.add_development_dependency 'aruba', '~> 2.1'
   spec.add_development_dependency 'simplecov', '~> 0.22.0'
   spec.add_development_dependency 'rubocop',  '~> 1.54'