diff --git a/.travis.yml b/.travis.yml
index e95b95de..70997822 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,8 +6,6 @@ before_install:
 install:
 - bundle install
 rvm:
-- 2.1
-- 2.2.1
 - 2.3.0
 - 2.4.1
 notifications:
@@ -28,8 +26,6 @@ deploy:
   on:
     tags: true
     all_branches: true
-    rvm: 2.1
-    rvm: 2.2
     rvm: 2.3.0
     rvm: 2.4.1
     repo: sensu-plugins/sensu-plugins-aws
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05079530..7a868465 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ This CHANGELOG follows the format listed [here](https://github.com/sensu-plugins
 
 ## [Unreleased]
 
+## [18.0.0] - 2019-04-2
+### Breaking Changes
+- `check-alb-target-group-health.rb` will now alert if a n ALB has no health targets (@kunal-plivo)
+- removed ruby `< 2.3` support (@majormoses)
+- bump `sensu-plugin` dependency from `~> 2.0` to `~> 4.0` you can read the changelog entries for [4.0](https://github.com/sensu-plugins/sensu-plugin/blob/master/CHANGELOG.md#400---2018-02-17) and [3.0](https://github.com/sensu-plugins/sensu-plugin/blob/master/CHANGELOG.md#300---2018-12-04) (@majormoses)
+
 ## [17.2.0] - 2019-04-02
 ### Added
 - `check-rds-pending.rb`: adding option `--db-instance-identifier` to support checking only a single db instance for pending maintenance events, instead of all instances in a region. (@mattdoller)
@@ -564,7 +570,8 @@ WARNING:  This release contains major breaking changes that will impact all user
 ### Added
 - initial release
 
-[Unreleased]: https://github.com/sensu-plugins/sensu-plugins-aws/compare/17.1.0...HEAD
+[Unreleased]: https://github.com/sensu-plugins/sensu-plugins-aws/compare/18.0.0...HEAD
+[18.0.0]: https://github.com/sensu-plugins/sensu-plugins-aws/compare/17.2.0...18.0.0
 [17.2.0]: https://github.com/sensu-plugins/sensu-plugins-aws/compare/17.1.0...17.2.0
 [17.1.0]: https://github.com/sensu-plugins/sensu-plugins-aws/compare/17.0.0...17.1.0
 [17.0.0]: https://github.com/sensu-plugins/sensu-plugins-aws/compare/16.2.0...17.0.0
diff --git a/lib/sensu-plugins-aws/version.rb b/lib/sensu-plugins-aws/version.rb
index 565f74f5..9f8856b3 100644
--- a/lib/sensu-plugins-aws/version.rb
+++ b/lib/sensu-plugins-aws/version.rb
@@ -1,7 +1,7 @@
 module SensuPluginsAWS
   module Version
-    MAJOR = 17
-    MINOR = 2
+    MAJOR = 18
+    MINOR = 0
     PATCH = 0
     VER_STRING = [MAJOR, MINOR, PATCH].compact.join('.')
   end
diff --git a/sensu-plugins-aws.gemspec b/sensu-plugins-aws.gemspec
index ad346b02..267b0cc1 100644
--- a/sensu-plugins-aws.gemspec
+++ b/sensu-plugins-aws.gemspec
@@ -26,12 +26,12 @@ Gem::Specification.new do |s| # rubocop:disable Metrics/BlockLength
   s.platform               = Gem::Platform::RUBY
   s.post_install_message   = 'You can use the embedded Ruby by setting EMBEDDED_RUBY=true in /etc/default/sensu'
   s.require_paths          = ['lib']
-  s.required_ruby_version  = '>= 2.1.0'
+  s.required_ruby_version  = '>= 2.3.0'
   s.summary                = 'Sensu plugins for working with an AWS environment'
   s.test_files             = s.files.grep(%r{^(test|spec|features)/})
   s.version                = SensuPluginsAWS::Version::VER_STRING
 
-  s.add_runtime_dependency 'sensu-plugin',      '~> 2.0'
+  s.add_runtime_dependency 'sensu-plugin',      '~> 4.0'
 
   s.add_runtime_dependency 'aws-sdk',           '~> 3.0'
   s.add_runtime_dependency 'erubis',            '2.7.0'