diff --git a/archimedes.gemspec b/archimedes.gemspec
index 2d8caef..5a64299 100644
--- a/archimedes.gemspec
+++ b/archimedes.gemspec
@@ -22,7 +22,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'mocha', '~> 0.14.0'
   spec.add_development_dependency 'rake'
   spec.add_development_dependency 'rspec', '~> 2.14.1'
-  spec.add_development_dependency 'simplecov', '~> 0.7.1'
+  spec.add_development_dependency 'simplecov', '~> 0.17.0'
 
   spec.add_dependency 'isomer', '~> 0.1.3'
   spec.add_dependency 'statsd-ruby', '~> 1.2.1'