diff --git a/jekyll.gemspec b/jekyll.gemspec
index 1a8f1c96..04a20e23 100644
--- a/jekyll.gemspec
+++ b/jekyll.gemspec
@@ -34,6 +34,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency('colorator', "~> 0.1")
   s.add_runtime_dependency('redcarpet', "~> 3.0")
   s.add_runtime_dependency('toml', '~> 0.1.0')
+  s.add_runtime_dependency('sass', '~> 3.2')
 
   s.add_development_dependency('rake', "~> 10.1")
   s.add_development_dependency('rdoc', "~> 3.11")
@@ -53,7 +54,6 @@ Gem::Specification.new do |s|
   s.add_development_dependency('jekyll_test_plugin')
   s.add_development_dependency('jekyll_test_plugin_malicious')
   s.add_development_dependency('rouge', '~> 1.3')
-  s.add_development_dependency('sass', '~> 3.2')
 
   # = MANIFEST =
   s.files = %w[