diff --git a/zizia.gemspec b/zizia.gemspec
index 21ada8c..3e32f92 100644
--- a/zizia.gemspec
+++ b/zizia.gemspec
@@ -49,7 +49,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'rspec'
   gem.add_development_dependency 'rspec-rails'
   gem.add_development_dependency 'rspec_junit_formatter'
-  gem.add_development_dependency "sass-rails", "~> 5.0.4"
+  gem.add_development_dependency "sass-rails", "~> 6.0.0"
   gem.add_development_dependency 'selenium-webdriver'
   gem.add_development_dependency 'solr_wrapper', '>= 0.3'
   gem.add_development_dependency 'spring'