Gemfile in gir_ffi-0.11.3 vs Gemfile in gir_ffi-0.11.4

@@ -9,7 +9,7 @@
   if ENV['TRAVIS_RUBY_VERSION'] == '2.2'
     gem 'coveralls', group: :development
   end
 else
   gem 'pry', '~> 0.10.4', group: :local_development
-  gem 'simplecov', '~> 0.14.0', group: :local_development, platform: :mri
+  gem 'simplecov', '~> 0.15.0', group: :local_development, platform: :mri
 end