diff --git a/Gemfile b/Gemfile
index 37f5eaa42e5044a403727c7b15108bc41df2a0ca..e4d780bb614f64cba87c0af27ff59c7476e3dbd6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,2 +1,3 @@
 source 'https://rubygems.org'
+gem "sprockets", "~> 3.7"
 gem 'github-pages', group: :jekyll_plugins