diff --git a/Gemfile b/Gemfile
index 8b755e7..410bf4a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -27,7 +27,7 @@ gem 'jekyll-github-metadata', '~> 2.16', '>= 2.16.1'
 gem 'jekyll-last-modified-at', '~> 1.3', '>= 1.3.2'
 gem 'jekyll-mentions', '~> 1.6'
 gem 'jekyll-optional-front-matter', '~> 0.3.2'
-gem 'jekyll-readme-index', '~> 0.3.0'
+gem 'jekyll-readme-index', '~> 0.4.0'
 gem 'jekyll-relative-links', '~> 0.8.0'
 gem 'jekyll-seo-tag', '~> 2.8'
 gem 'jekyll-sitemap', '~> 1.4'