diff --git a/sensu-plugins-elasticsearch.gemspec b/sensu-plugins-elasticsearch.gemspec
index 5f9e0a9..0e7ba06 100644
--- a/sensu-plugins-elasticsearch.gemspec
+++ b/sensu-plugins-elasticsearch.gemspec
@@ -48,7 +48,7 @@ Gem::Specification.new do |s| # rubocop:disable Metrics/BlockLength
   s.add_development_dependency 'rake',                      '~> 13.0'
   s.add_development_dependency 'redcarpet',                 '~> 3.2'
   s.add_development_dependency 'rspec',                     '~> 3.1'
-  s.add_development_dependency 'rubocop',                   '~> 0.51.0'
+  s.add_development_dependency 'rubocop',                   '~> 0.81.0'
   # 0.17 requires ruby 2.3+
   s.add_development_dependency 'test-kitchen',              '~> 1.16.0'
   s.add_development_dependency 'yard',                      '~> 0.9.11'