diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index df54b7b..73024c8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,13 +13,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - ruby: 2.6
-
-          - ruby: 2.7
-
-          - ruby: 3.0
-
           - ruby: 3.1
+          - ruby: 3.2
+          - ruby: 3.3
+          - ruby: head
 
     name: ruby ${{ matrix.ruby }}
 
diff --git a/.rubocop.yml b/.rubocop.yml
index c8f27b6..86b1414 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,6 +3,7 @@
 
 require:
   - rubocop-performance
+  - rubocop-rake
   - rubocop-rspec
 
 inherit_from:
@@ -24,7 +25,7 @@ AllCops:
   # Additional cops that do not reference a style guide rule may be enabled by
   # default. Change behavior by overriding StyleGuideCopsOnly, or by giving
   # the --only-guide-cops option.
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 3.1
 
 Layout/LineLength:
   Max: 120
diff --git a/.ruby-version b/.ruby-version
deleted file mode 100644
index 1f7da99..0000000
--- a/.ruby-version
+++ /dev/null
@@ -1 +0,0 @@
-2.7.7
diff --git a/.tool-versions b/.tool-versions
index 33a8789..05668b7 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-ruby 2.7.7
+ruby 3.3.4
diff --git a/Gemfile b/Gemfile
index 349427a..0c4bc6a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,4 +5,11 @@ source 'https://rubygems.org'
 # Specify your gem's dependencies in ngrok-wrapper.gemspec
 gemspec
 
+gem 'github_changelog_generator', git: 'https://github.com/github-changelog-generator/github-changelog-generator'
+gem 'rake'
+gem 'rspec'
+gem 'rubocop'
+gem 'rubocop-performance'
+gem 'rubocop-rake'
+gem 'rubocop-rspec'
 gem 'simplecov', require: false, group: :test
diff --git a/disabled.yml b/disabled.yml
index 2ab43f5..be1b1a4 100644
--- a/disabled.yml
+++ b/disabled.yml
@@ -15,6 +15,9 @@ RSpec/BeEql:
 RSpec/ExampleLength:
   Enabled: false
 
+RSpec/PredicateMatcher:
+  Enabled: false
+
 RSpec/ExpectInHook:
   Enabled: false
 
diff --git a/lib/ngrok/wrapper.rb b/lib/ngrok/wrapper.rb
index 468bd6a..9001515 100644
--- a/lib/ngrok/wrapper.rb
+++ b/lib/ngrok/wrapper.rb
@@ -42,7 +42,7 @@ def start(params = {})
         # Attempt to read the attributes of an existing process instead of starting a new process.
         try_params_from_running_ngrok if persistent_ngrok
 
-        spawn_new_ngrok(persistent_ngrok: persistent_ngrok) if stopped?
+        spawn_new_ngrok(persistent_ngrok:) if stopped?
 
         @status = :running
         if persistent_ngrok
diff --git a/ngrok-wrapper.gemspec b/ngrok-wrapper.gemspec
index f77ecc1..488871b 100644
--- a/ngrok-wrapper.gemspec
+++ b/ngrok-wrapper.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |spec|
   spec.summary = 'Ngrok-wrapper gem is a ruby wrapper for ngrok2'
   spec.description = 'Ngrok-wrapper gem is a ruby wrapper for ngrok2'
   spec.homepage = 'https://github.com/texpert/ngrok-wrapper'
-  spec.required_ruby_version = '>= 2.6.0'
+  spec.required_ruby_version = '>= 3.1.0'
   spec.license = 'MIT'
 
   spec.metadata['rubygems_mfa_required'] = 'true'
@@ -26,11 +26,4 @@ Gem::Specification.new do |spec|
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
   spec.files         = `git ls-files -z`.split("\x0")
   spec.require_paths = ['lib']
-
-  spec.add_development_dependency 'github_changelog_generator'
-  spec.add_development_dependency 'rake'
-  spec.add_development_dependency 'rspec'
-  spec.add_development_dependency 'rubocop'
-  spec.add_development_dependency 'rubocop-performance'
-  spec.add_development_dependency 'rubocop-rspec'
 end
diff --git a/spec/ngrok/wrapper_spec.rb b/spec/ngrok/wrapper_spec.rb
index 2923877..a350fc6 100644
--- a/spec/ngrok/wrapper_spec.rb
+++ b/spec/ngrok/wrapper_spec.rb
@@ -125,19 +125,19 @@
 
         it 'maps port param to addr' do
           port = 10_010
-          Ngrok::Wrapper.start(port: port)
+          Ngrok::Wrapper.start(port:)
           expect(Ngrok::Wrapper.addr).to eq port
         end
 
         it 'returns just the port when the address contains a host' do
           addr = '192.168.0.5:10010'
-          Ngrok::Wrapper.start(addr: addr)
+          Ngrok::Wrapper.start(addr:)
           expect(Ngrok::Wrapper.port).to eq 10_010
         end
 
         it 'supports remote addresses' do
           addr = '192.168.0.5:10010'
-          Ngrok::Wrapper.start(addr: addr)
+          Ngrok::Wrapper.start(addr:)
           expect(Ngrok::Wrapper.addr).to eq addr
         end
       end
@@ -154,7 +154,7 @@
 
         it 'includes the -region parameter with the correct value when it is provided' do
           region = 'eu'
-          Ngrok::Wrapper.start(region: region)
+          Ngrok::Wrapper.start(region:)
           expect(Ngrok::Wrapper.__send__(:ngrok_exec_params)).to include("-region=#{region}")
         end
       end
@@ -198,7 +198,7 @@
         it 'includes the -host-header parameter with the correct value when it is provided' do
           expect(Ngrok::Wrapper).to receive(:fetch_urls)
           host_header = 'foo.bar'
-          Ngrok::Wrapper.start(host_header: host_header)
+          Ngrok::Wrapper.start(host_header:)
           expect(Ngrok::Wrapper.__send__(:ngrok_exec_params)).to include("-host-header=#{host_header}")
         end
       end