diff --git a/acts_as_tenant.gemspec b/acts_as_tenant.gemspec
index 9418072..25ca448 100644
--- a/acts_as_tenant.gemspec
+++ b/acts_as_tenant.gemspec
@@ -9,6 +9,7 @@ Gem::Specification.new do |spec|
   spec.homepage = "https://github.com/ErwinM/acts_as_tenant"
   spec.summary = "Add multi-tenancy to Rails applications using a shared db strategy"
   spec.description = "Integrates multi-tenancy into a Rails application in a convenient and out-of-your way manner"
+  spec.metadata = { "rubygems_mfa_required" => "true" }
 
   spec.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]