diff --git a/Gemfile b/Gemfile
index 8e7ddbe..e353551 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,6 +8,8 @@ source "https://rubygems.org"
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
 gem "jekyll", "~> 4.0.0"
+gem "jekyll-sitemap", "~> 1.4.0"
+
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 gem "minima", "~> 2.5"
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and