diff --git a/Gemfile b/Gemfile
index ab38815..191858a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,4 @@
 source 'https://rubygems.org'
 
-gem 'jekyll'
\ No newline at end of file
+gem 'jekyll'
+gem 'jekyll-sitemap', "0.4.0"
\ No newline at end of file