diff --git a/money-rails.gemspec b/money-rails.gemspec
index bd73c2d86..4d0a05eed 100644
--- a/money-rails.gemspec
+++ b/money-rails.gemspec
@@ -42,5 +42,6 @@ Gem::Specification.new do |s|
     s.metadata['changelog_uri'] = 'https://github.com/RubyMoney/money-rails/blob/master/CHANGELOG.md'
     s.metadata['source_code_uri'] = 'https://github.com/RubyMoney/money-rails/'
     s.metadata['bug_tracker_uri'] = 'https://github.com/RubyMoney/money-rails/issues'
+    s.metadata['rubygems_mfa_required'] = 'true'
   end
 end