diff --git a/src/lib/bootstrap/Gemfile b/src/lib/bootstrap/Gemfile
index feb162291c..e9f2806ffe 100644
--- a/src/lib/bootstrap/Gemfile
+++ b/src/lib/bootstrap/Gemfile
@@ -2,5 +2,5 @@ source 'https://rubygems.org'
 
 group :development, :test do
   gem 'jekyll', '~> 3.1.2'
-  gem 'jekyll-sitemap', '~> 0.11.0'
+  gem 'jekyll-sitemap', '~> 0.13.0'
 end