diff --git a/rspec_api_documentation.gemspec b/rspec_api_documentation.gemspec
index 978b3bf0..ba726e2a 100644
--- a/rspec_api_documentation.gemspec
+++ b/rspec_api_documentation.gemspec
@@ -32,7 +32,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "nokogiri", "~> 1.8.4"
   s.add_development_dependency "yard", "~> 0.9.15"
   s.add_development_dependency "inch", "~> 0.8.0"
-  s.add_development_dependency "minitest", "~> 5.8.4"
+  s.add_development_dependency "minitest", "~> 5.22.3"
   s.add_development_dependency "contracts", "~> 0.17"
   s.add_development_dependency "gherkin", "~> 9.0.0"
   s.add_development_dependency "multi_json", "~> 1.15.0"