diff --git a/.travis.yml b/.travis.yml
index 92331b5..d1f390c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,5 +9,6 @@ matrix:
     - rvm: 2.5
     - rvm: 2.6
     - rvm: 2.7
+    - rvm: 3.0
 services:
   - memcached
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49a76d6..20d9ccc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## [3.0.0] - 2021-02-08
+## Changed
+- Add support for ruby 3.0
+
 ## [2.0.0] - 2020-04-02
 ## Changed
 - Add support for ruby 2.7
diff --git a/heartcheck-redis.gemspec b/heartcheck-redis.gemspec
index 847d1e7..a65d874 100644
--- a/heartcheck-redis.gemspec
+++ b/heartcheck-redis.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
   spec.test_files = spec.files.grep(/^spec\//)
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '>= 2.3'
+  spec.required_ruby_version = '>= 3.0'
 
   spec.add_runtime_dependency 'net-telnet', '~> 0.1.1'
 
diff --git a/lib/heartcheck/cache/version.rb b/lib/heartcheck/cache/version.rb
index 5219677..4c39774 100644
--- a/lib/heartcheck/cache/version.rb
+++ b/lib/heartcheck/cache/version.rb
@@ -2,6 +2,6 @@
 module Heartcheck
   # gem version
   module Cache
-    VERSION = '2.0.0'
+    VERSION = '3.0.0'
   end
 end