diff --git a/sord.gemspec b/sord.gemspec
index 4be5c02..70bd7b4 100644
--- a/sord.gemspec
+++ b/sord.gemspec
@@ -13,6 +13,10 @@ Gem::Specification.new do |spec|
   spec.homepage      = "https://github.com/AaronC81/sord"
   spec.license       = "MIT"
 
+  spec.metadata = { 'rubygems_mfa_required' => 'true' }
+
+  spec.required_ruby_version = '>= 3.0'
+
   # Specify which files should be added to the gem when it is released.
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
   spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do