diff --git a/cyclonedx-ruby.gemspec b/cyclonedx-ruby.gemspec
index 087712e..7b7408d 100644
--- a/cyclonedx-ruby.gemspec
+++ b/cyclonedx-ruby.gemspec
@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency('nokogiri', '~> 1.15')
   spec.add_dependency('ostruct', '~> 0.5.5')
   spec.add_dependency('rest-client', '~> 2.0')
-  spec.add_dependency('activesupport', '~> 7.0')
+  spec.add_dependency('activesupport', '>= 7', '< 9')
   spec.add_development_dependency 'rake', '~> 13'
   spec.add_development_dependency 'rspec', '~> 3.12'
   spec.add_development_dependency 'cucumber', '~> 8.0'