diff --git a/sensu-plugins-elasticsearch.gemspec b/sensu-plugins-elasticsearch.gemspec
index ce9dc2a..939e7c7 100644
--- a/sensu-plugins-elasticsearch.gemspec
+++ b/sensu-plugins-elasticsearch.gemspec
@@ -33,7 +33,7 @@ Gem::Specification.new do |s| # rubocop:disable Metrics/BlockLength
   s.version                = SensuPluginsElasticsearch::Version::VER_STRING
 
   s.add_runtime_dependency 'aws-es-transport', '~> 0.1'
-  s.add_runtime_dependency 'aws-sdk', ['>= 2.1.14', '< 2.5', '~> 2.1']
+  s.add_runtime_dependency 'aws-sdk', '>= 2.1.14', '< 3.1'
   s.add_runtime_dependency 'elasticsearch',     '~> 1.0.14'
   s.add_runtime_dependency 'rest-client', '1.8.0'
   s.add_runtime_dependency 'sensu-plugin', '~> 1.2'