diff --git a/Gemfile b/Gemfile
index 811212e6f..78db5caf8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,6 +4,7 @@ ruby '>= 2.3.0', '< 2.7.0'
 gem "bundler", ">= 1.5.0"
 
 gem "rails", "5.2.4.1"
+gem 'sprockets', '~> 3.7.2' if RUBY_VERSION < '2.5'
 gem 'rouge', '~> 3.15.0'
 gem 'request_store', '~> 1.5.0'
 gem "mini_mime", "~> 1.0.1"