diff --git a/Gemfile b/Gemfile
index c45dca6b3..67989399c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,6 +21,8 @@ gem 'sdoc', '~> 0.4.0', group: :doc
 # Used for 'respond_to' feature
 gem 'responders', '~> 2.0'
 
+gem 'tzinfo-data'
+
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem 'byebug'