diff --git a/aasm.gemspec b/aasm.gemspec
index dc1a78b3..09359020 100644
--- a/aasm.gemspec
+++ b/aasm.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'generator_spec'
   s.add_development_dependency 'appraisal'
   s.add_development_dependency "simplecov"
-  s.add_development_dependency "codecov", ">= 0.1.21"
+  s.add_development_dependency "simplecov-cobertura"
 
   # debugging
   # s.add_development_dependency 'debugger'
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index ef9b6579..b041194b 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -4,8 +4,8 @@
 end
 
 if ENV['CI'] == 'true'
-  require 'codecov'
-  SimpleCov.formatter = SimpleCov::Formatter::Codecov
+  require 'simplecov-cobertura'
+  SimpleCov.formatter = SimpleCov::Formatter::CoberturaFormatter
 end
 
 $LOAD_PATH.unshift(File.expand_path(File.dirname(__FILE__)))