diff --git a/Gemfile b/Gemfile
index a087bfd..6924713 100644
--- a/Gemfile
+++ b/Gemfile
@@ -24,6 +24,7 @@ gem 'redcarpet', '~> 3.4.0'
 # Use ActiveModel has_secure_password
 gem 'bcrypt', '~> 3.1.11'
 
+gem 'tzinfo-data'
 
 group :development, :test do
 
diff --git a/Gemfile.lock b/Gemfile.lock
index e42d0bc..cde4cfd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -220,6 +220,8 @@ GEM
     turbolinks-source (5.1.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
+    tzinfo-data (1.2018.3)
+      tzinfo (>= 1.0.0)
     uglifier (4.1.8)
       execjs (>= 0.3.0, < 3)
     unitwise (2.2.0)
@@ -255,6 +257,7 @@ DEPENDENCIES
   sqlite3
   therubyracer
   turbolinks (~> 5.1.0)
+  tzinfo-data
   uglifier (>= 1.3.0)
   unitwise (~> 2.2.0)