diff --git a/Gemfile b/Gemfile
index 9136cc7..ef8fa19 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,6 +22,7 @@ gem 'omniauth-browserid'
 gem 'foundation-rails', '~> 5.5'
 gem 'jquery-rails'
 gem 'sass-rails'
+gem 'sassc', '~> 2.1.0'
 gem 'slim-rails'
 gem 'turbolinks'
 gem 'uglifier'
diff --git a/Gemfile.lock b/Gemfile.lock
index fed234f..cc3b3c0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -233,7 +233,7 @@ GEM
     sass (3.4.25)
     sass-rails (6.0.0)
       sassc-rails (~> 2.1, >= 2.1.1)
-    sassc (2.4.0)
+    sassc (2.1.0)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
       railties (>= 4.0.0)