1 files changed, 1 insertions, 0 deletions
diff --git a/Gemfile b/Gemfile
index f567eac3ee0..33f9c4650ef 100644
--- a/Gemfile
+++ b/Gemfile
@@ -368,6 +368,7 @@ group :development, :test do
   gem 'haml_lint', '~> 0.31.0', require: false
   gem 'simplecov', '~> 0.16.1', require: false
   gem 'bundler-audit', '~> 0.5.0', require: false
+  gem 'mdl', '~> 0.5.0', require: false
 
   gem 'benchmark-ips', '~> 2.3.0', require: false