diff --git a/Gemfile b/Gemfile
index dcf00dc..4adda93 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,6 +8,9 @@
 # Full-stack web application framework. (http://rubyonrails.org)
 gem 'rails', '~> 4.2.11.1'
 
+# TODO: See if pegging gems is still necessary after migrating to Rails 5
+gem 'sprockets', '~> 3.2'
+
 # Rake is a Make-like program implemented in Ruby (https://github.com/ruby/rake)
 gem "rake"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 8a7bfed..e9421bc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -538,6 +538,7 @@
   simplecov
   spring
   spring-commands-rspec
+  sprockets (~> 3.2)
   text
   thin
   web-console