hash_ext.gemspec in hash_ext-0.4.0 vs hash_ext.gemspec in hash_ext-0.5.0

@@ -19,10 +19,10 @@
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'bundler', '~> 1.12'
   spec.add_development_dependency 'rake', '~> 11.0'
-  spec.add_development_dependency 'minitest', '~> 5.0'
+  spec.add_development_dependency 'minitest', '~> 5.0', '< 5.11'
   spec.add_development_dependency 'minitest-colorin', '~> 0.1'
   spec.add_development_dependency 'minitest-line', '~> 0.6'
   spec.add_development_dependency 'simplecov', '~> 0.14'
   spec.add_development_dependency 'coveralls', '~> 0.8'
   spec.add_development_dependency 'pry-nav', '~> 0.2'