diff --git a/.rubocop.yml b/.rubocop.yml
index cfc17390b..2c4033755 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -6,7 +6,7 @@ require:
   - rubocop-rspec
 
 AllCops:
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 3.0
   Exclude:
     # Exclude .gemspec files because they are generally auto-generated
     - '*.gemspec'
diff --git a/README.md b/README.md
index 9d49d1250..152bab568 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ This repository contains the core whois library, that includes the WHOIS client,
 
 ## Requirements
 
-- Ruby >= 2.4
+- Ruby >= 3.0
 
 For older versions of Ruby, see the [CHANGELOG](CHANGELOG.md).
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index cd19646e0..9b5bc7e91 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -12,7 +12,7 @@
 
 # Requires supporting ruby files with custom matchers and macros, etc,
 # in spec/support/ and its subdirectories.
-Dir[File.join(SPEC_ROOT, "support/**/*.rb")].sort.each { |f| require f }
+Dir[File.join(SPEC_ROOT, "support/**/*.rb")].each { |f| require f }
 
 RSpec.configure do |config|
   config.mock_with :rspec
diff --git a/whois.gemspec b/whois.gemspec
index 1e251e771..d077604a2 100644
--- a/whois.gemspec
+++ b/whois.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.description = "Whois is an intelligent WHOIS client and parser written in pure Ruby. It can query registry data for IPv4, IPv6 and top level domains, and parse the responses into easy-to-use Ruby objects via the whois-parser library."
   s.license     = "MIT"
 
-  s.required_ruby_version = ">= 2.4"
+  s.required_ruby_version = ">= 3.0"
 
   s.require_paths    = %w( lib )
   s.executables      =%w( whoisrb )