diff --git a/sepa_king.gemspec b/sepa_king.gemspec
index 135555a..555e686 100644
--- a/sepa_king.gemspec
+++ b/sepa_king.gemspec
@@ -27,6 +27,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'bundler'
   s.add_development_dependency 'rspec'
   s.add_development_dependency 'coveralls'
+  s.add_development_dependency 'term-ansicolor', '~> 1.3.2' if RUBY_VERSION < '2'
   s.add_development_dependency 'simplecov', RUBY_VERSION < '2' ? '~> 0.11.2' : '>= 0.11.2'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'nokogiri'