diff --git a/sensu-plugins-process-checks.gemspec b/sensu-plugins-process-checks.gemspec
index 1e3560e..be07181 100644
--- a/sensu-plugins-process-checks.gemspec
+++ b/sensu-plugins-process-checks.gemspec
@@ -37,7 +37,7 @@ Gem::Specification.new do |s| # rubocop: disable Metrics/BlockLength
 
   s.add_development_dependency 'bundler',                   '~> 1.7'
   s.add_development_dependency 'codeclimate-test-reporter', '~> 0.4'
-  s.add_development_dependency 'github-markup',             '~> 1.3'
+  s.add_development_dependency 'github-markup',             '~> 3.0'
   s.add_development_dependency 'pry',                       '~> 0.10'
   s.add_development_dependency 'rake',                      '~> 10.0'
   s.add_development_dependency 'redcarpet',                 '~> 3.2'