diff --git a/Gemfile b/Gemfile
index f1c10c948..0124fd90d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 group :development, :test do
   gem 'jekyll', '~> 3.1.0'
   gem 'jekyll-redirect-from', '~> 0.9.1'
-  gem 'jekyll-sitemap', '~> 0.9.0'
+  gem 'jekyll-sitemap', '~> 0.10.0'
   gem 'sass', '~> 3.4.21'
   gem 'scss_lint', '~> 0.44.0'
 end