diff --git a/ruby/cucumber-gherkin.gemspec b/ruby/cucumber-gherkin.gemspec
index 6431ff0e81..4f8514c2c8 100644
--- a/ruby/cucumber-gherkin.gemspec
+++ b/ruby/cucumber-gherkin.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
     'source_code_uri' => 'https://github.com/cucumber/gherkin/blob/main/ruby'
   }
 
-  s.add_dependency 'cucumber-messages', '~> 19.1', '>= 19.1.4'
+  s.add_dependency 'cucumber-messages', '>= 19.1.4', '< 22.0'
 
   s.add_development_dependency 'rake', '~> 13.0', '>= 13.0.6'
   s.add_development_dependency 'rspec', '~> 3.11', '>= 3.11.0'