diff --git a/.github/workflows/test-ruby.yaml b/.github/workflows/test-ruby.yaml
index bee8bb88..374e9ab8 100644
--- a/.github/workflows/test-ruby.yaml
+++ b/.github/workflows/test-ruby.yaml
@@ -28,7 +28,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest]
-        ruby: ['3.2', '3.3', '3.4', '4.0']
+        ruby: ['3.3', '3.4', '4.0']
         include:
           - os: windows-latest
             ruby: '4.0'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 103c2741..51b1ecef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Fixed
 - [Ruby] Ensure `CiEnvironments.json` is published (in new dir), in gem package
 - BREAKING CHANGE: [Ruby] change `VariableExpression` module namespace to be top level alongside `CiEnvironment` module
+- [Ruby] Minimum ruby version is now 3.3
 
 ## [14.0.0] - 2026-06-11
 ### Changed
diff --git a/ruby/.rubocop.yml b/ruby/.rubocop.yml
index 92fa0e44..d9e6d3b6 100644
--- a/ruby/.rubocop.yml
+++ b/ruby/.rubocop.yml
@@ -1,12 +1,12 @@
 inherit_from: .rubocop_todo.yml
 
-require:
+plugins:
   - rubocop-performance
   - rubocop-rake
   - rubocop-rspec
 
 AllCops:
-  TargetRubyVersion: 3.2
+  TargetRubyVersion: 3.3
   NewCops: enable
 
 # Keep dev dependencies in gemspec
diff --git a/ruby/cucumber-ci-environment.gemspec b/ruby/cucumber-ci-environment.gemspec
index 333aa3cb..b2573beb 100644
--- a/ruby/cucumber-ci-environment.gemspec
+++ b/ruby/cucumber-ci-environment.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.homepage    = 'https://github.com/cucumber/ci-environment'
   s.platform    = Gem::Platform::RUBY
   s.license     = 'MIT'
-  s.required_ruby_version = '>= 3.2'
+  s.required_ruby_version = '>= 3.3'
   s.required_rubygems_version = '>= 3.2.8'
 
   s.metadata = {
@@ -23,10 +23,10 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency 'rake', '~> 13.3'
   s.add_development_dependency 'rspec', '~> 3.13'
-  s.add_development_dependency 'rubocop', '~> 1.81.0'
-  s.add_development_dependency 'rubocop-performance', '~> 1.23.0'
-  s.add_development_dependency 'rubocop-rake', '~> 0.6.0'
-  s.add_development_dependency 'rubocop-rspec', '~> 3.7.0'
+  s.add_development_dependency 'rubocop', '~> 1.88.2'
+  s.add_development_dependency 'rubocop-performance', '~> 1.26.1'
+  s.add_development_dependency 'rubocop-rake', '~> 0.7.1'
+  s.add_development_dependency 'rubocop-rspec', '~> 3.10.2'
 
   s.files            = Dir['README.md', 'LICENSE', 'lib/**/*']
   s.rdoc_options     = ['--charset=UTF-8']
diff --git a/ruby/lib/cucumber/ci_environment.rb b/ruby/lib/cucumber/ci_environment.rb
index f713bb59..063d4510 100644
--- a/ruby/lib/cucumber/ci_environment.rb
+++ b/ruby/lib/cucumber/ci_environment.rb
@@ -2,7 +2,8 @@
 
 require 'uri'
 require 'json'
-require 'cucumber/variable_expression'
+
+require_relative 'variable_expression'
 
 module Cucumber
   class CiEnvironment
diff --git a/ruby/spec/cucumber/ci_environment_spec.rb b/ruby/spec/cucumber/ci_environment_spec.rb
index 18924783..4746692b 100644
--- a/ruby/spec/cucumber/ci_environment_spec.rb
+++ b/ruby/spec/cucumber/ci_environment_spec.rb
@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require 'cucumber/ci_environment'
-require 'json'
 
 describe Cucumber::CiEnvironment do
   describe '.detect_ci_environment' do
diff --git a/ruby/spec/cucumber/variable_expression_spec.rb b/ruby/spec/cucumber/variable_expression_spec.rb
index 06faefc5..8f7f9d5d 100644
--- a/ruby/spec/cucumber/variable_expression_spec.rb
+++ b/ruby/spec/cucumber/variable_expression_spec.rb
@@ -4,39 +4,43 @@
 
 describe Cucumber::VariableExpression do
   describe '.evaluate' do
-    subject(:ci_environment) { Cucumber::CiEnvironment }
+    subject(:variable_klazz) do
+      Class.new do
+        extend Cucumber::VariableExpression
+      end
+    end
 
     it 'returns nil when a variable is undefined' do
       expression = 'hello-${SOME_VAR}'
-      result = ci_environment.evaluate(expression, {})
+      result = variable_klazz.evaluate(expression, {})
 
       expect(result).to be_nil
     end
 
     it 'gets a value without replacement' do
       expression = '${SOME_VAR}'
-      result = ci_environment.evaluate(expression, { 'SOME_VAR' => 'some_value' })
+      result = variable_klazz.evaluate(expression, { 'SOME_VAR' => 'some_value' })
 
       expect(result).to eq('some_value')
     end
 
     it 'captures a group' do
       expression = '${SOME_REF/refs/heads/(.*)/\\1}'
-      result = ci_environment.evaluate(expression, { 'SOME_REF' => 'refs/heads/main' })
+      result = variable_klazz.evaluate(expression, { 'SOME_REF' => 'refs/heads/main' })
 
       expect(result).to eq('main')
     end
 
     it 'works with star wildcard in var' do
       expression = '${GO_SCM_*_PR_BRANCH/.*:(.*)/\\1}'
-      result = ci_environment.evaluate(expression, { 'GO_SCM_MY_MATERIAL_PR_BRANCH' => 'ashwankthkumar:feature-1' })
+      result = variable_klazz.evaluate(expression, { 'GO_SCM_MY_MATERIAL_PR_BRANCH' => 'ashwankthkumar:feature-1' })
 
       expect(result).to eq('feature-1')
     end
 
-    it 'ci_environment.evaluates a complex expression' do
+    it 'variable_klazz.evaluates a complex expression' do
       expression = 'hello-${VAR1}-${VAR2/(.*) (.*)/\\2-\\1}-world'
-      result = ci_environment.evaluate(expression, { 'VAR1' => 'amazing', 'VAR2' => 'gorgeous beautiful' })
+      result = variable_klazz.evaluate(expression, { 'VAR1' => 'amazing', 'VAR2' => 'gorgeous beautiful' })
 
       expect(result).to eq('hello-amazing-beautiful-gorgeous-world')
     end