diff --git a/sensu-plugins-zookeeper.gemspec b/sensu-plugins-zookeeper.gemspec
index c290f08..2831743 100644
--- a/sensu-plugins-zookeeper.gemspec
+++ b/sensu-plugins-zookeeper.gemspec
@@ -37,6 +37,6 @@ Gem::Specification.new do |s| # rubocop:disable Metrics/BlockLength
   s.add_development_dependency 'rake',                      '~> 12.3'
   s.add_development_dependency 'redcarpet',                 '~> 3.2'
   s.add_development_dependency 'rspec',                     '~> 3.4'
-  s.add_development_dependency 'rubocop',                   '~> 0.51.0'
+  s.add_development_dependency 'rubocop',                   '~> 0.81.0'
   s.add_development_dependency 'yard',                      '~> 0.9.20'
 end