acfs.gemspec in acfs-1.5.1 vs acfs.gemspec in acfs-1.6.0

@@ -23,9 +23,11 @@
 
   spec.executables   = spec.files.grep(%r{^bin/}) {|f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = %w[lib]
 
+  spec.required_ruby_version = '>= 2.5.0'
+
   spec.add_runtime_dependency 'actionpack', '>= 5.2'
   spec.add_runtime_dependency 'activemodel', '>= 5.2'
   spec.add_runtime_dependency 'activesupport', '>= 5.2'
   spec.add_runtime_dependency 'multi_json', '~> 1.0'
   spec.add_runtime_dependency 'rack'