diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 39706c2..64b407c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,32 +8,25 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, macos-13]
-        ruby: [2.2, 2.3, 2.4, 2.5, 2.6, head, jruby, jruby-head]
+        os: [ubuntu-latest, macos-latest]
+        ruby: [3.1, 3.2, 3.3, 3.4, head, jruby, jruby-head]
     continue-on-error: ${{ endsWith(matrix.ruby, 'head') || endsWith(matrix.ruby, 'jruby') }}
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
-        # HACK: Continue to use bundler <2 because of Ruby v2.2 support. Once the
-        # lowest dependency is Ruby v2.3 we can consider upgrading to Bundler 2.x.
-        bundler: 1.14
         bundler-cache: true
     - run: bundle exec rake spec
   coverage:
     needs: [ test ]
     name: coverage
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '2.2'
-        # HACK: Continue to use bundler <2 because of Ruby v2.2 support. Once the
-        # lowest dependency is Ruby v2.3 we can consider upgrading to Bundler 2.x.
-        bundler: 1.14
         bundler-cache: true
     - run: bundle exec rake
       env:
diff --git a/.rubocop.yml b/.rubocop.yml
index 3c33d34..1f4c59e 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,4 +1,13 @@
-require: rubocop-rspec
+require:
+  - rubocop-performance
+  - rubocop-rake
+  - rubocop-rspec
+
+AllCops:
+  NewCops: enable
+
+Gemspec/DevelopmentDependencies:
+  EnforcedStyle: gemspec
 
 Metrics/MethodLength:
   Max: 20
diff --git a/.ruby-version b/.ruby-version
index 0d3ad67..ef538c2 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.2.10
+3.1.2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4a7b4a..e4eabdd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [Unreleased]
 
 ### Changed
-- upgrade Rake to v12 to resolve [CVE-2020-8130](https://github.com/advisories/GHSA-jppv-gw3r-w3q8)
+- upgrade Rake to v13 to resolve [CVE-2020-8130](https://github.com/advisories/GHSA-jppv-gw3r-w3q8)
+- minimum required Ruby version to 3.1.2, dropping support for 2.x and 3.0
 
 ## 0.2.0 - 2018-07-12
 ### Changed
diff --git a/Gemfile b/Gemfile
index 1064384..0075398 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in rspec-side_effects.gemspec
diff --git a/README.md b/README.md
index bd734be..98036b7 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,6 @@
 [![Test Coverage](https://codeclimate.com/github/sugarcrm/rspec-side_effects/badges/coverage.svg)](https://codeclimate.com/github/sugarcrm/rspec-side_effects/coverage)
 [![License](http://img.shields.io/badge/license-Apache2-green.svg?style=flat)](LICENSE)
 
-[![Inline docs](http://inch-ci.org/github/sugarcrm/rspec-side_effects.svg)](http://inch-ci.org/github/sugarcrm/rspec-side_effects)
 [![RubyDoc](http://img.shields.io/badge/docs-rdoc.info-blue.svg)](http://rubydoc.org/gems/rspec-side_effects)
 
 RSpec extension for checking the side effects of your specifications.
@@ -99,14 +98,12 @@ To install this gem onto your local machine, run `bundle exec rake install`. To
 Links to other places on the web where this projects exists:
 
 * [Code Climate](https://codeclimate.com/github/sugarcrm/rspec-side_effects)
-* [InchCI](http://inch-ci.org/github/sugarcrm/rspec-side_effects)
 * [Github](https://github.com/sugarcrm/rspec-side_effects)
 * [OpenHub](https://www.openhub.net/p/rspec-side_effects)
-* [RubyDoc](http://rubydoc.org/gems/rspec-side_effects)
+* [RubyDoc](https://rubydoc.info/gems/rspec-side_effects)
 * [RubyGems](https://rubygems.org/gems/rspec-side_effects)
 * [Ruby LibHunt](https://ruby.libhunt.com/rspec-side_effects-alternatives)
 * [Ruby Toolbox](https://www.ruby-toolbox.com/projects/rspec-side_effects)
-* [TravisCI](https://travis-ci.org/sugarcrm/rspec-side_effects)
 
 ## Contributing
 
@@ -114,4 +111,4 @@ See [CONTRIBUTING](CONTRIBUTING.md) for how you can contribute changes back into
 
 ## Acknowledgments
 
-Copyright 2019 [SugarCRM Inc.](http://sugarcrm.com), released under the Apache2 License.
+Copyright 2025 [SugarCRM Inc.](http://sugarcrm.com), released under the [Apache2 License](https://www.apache.org/licenses/LICENSE-2.0.html).
diff --git a/Rakefile b/Rakefile
index d1ef82f..e15e102 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
 require 'rubocop/rake_task'
@@ -30,6 +32,16 @@ end
 
 Bundler::Audit::Task.new
 
+desc 'Show which specified gems are outdated'
+task 'bundle:outdated' do
+  bundle_outdated_report_pathname =
+    Pathname(Rake.application.original_dir).join('tmp', 'bundle_outdated.txt')
+  bundle_outdated_report_pathname.dirname.mkpath
+
+  # TODO: Should consider re-writing this without using `tee`.
+  sh("bundle outdated --only-explicit | tee #{bundle_outdated_report_pathname}")
+end
+
 desc 'Check dependency licenses'
 task :license_finder do
   puts `license_finder --quiet --format text`
diff --git a/bin/console b/bin/console
index f5e863e..9d68398 100755
--- a/bin/console
+++ b/bin/console
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'bundler/setup'
 require 'rspec/side_effects'
diff --git a/doc/dependency_decisions.yml b/doc/dependency_decisions.yml
index 53659bd..8d7b4fb 100644
--- a/doc/dependency_decisions.yml
+++ b/doc/dependency_decisions.yml
@@ -5,19 +5,19 @@
     :why: 
     :versions: []
     :when: 2018-06-13 15:20:17.351348000 Z
-- - :whitelist
+- - :permit
   - Apache 2.0
   - :who: Andrew Sullivan Cant <mail@andrewsullivancant.ca>
     :why: SugarCRM's primary approved open source license
     :versions: []
     :when: 2018-06-18 19:28:33.314061000 Z
-- - :whitelist
+- - :permit
   - MIT
   - :who: Andrew Sullivan Cant <mail@andrewsullivancant.ca>
     :why: SugarCRM's secondary approved open source license
     :versions: []
     :when: 2018-06-13 15:18:36.240771000 Z
-- - :whitelist
+- - :permit
   - BSD
   - :who: Andrew Sullivan Cant <mail@andrewsullivancant.ca>
     :why: SugarCRM's secondary approved open source license
diff --git a/lib/rspec/side_effects.rb b/lib/rspec/side_effects.rb
index f33e93c..adaa3b0 100644
--- a/lib/rspec/side_effects.rb
+++ b/lib/rspec/side_effects.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rspec/side_effects/version'
 
 module Rspec
@@ -7,7 +9,7 @@ module Rspec
   # @example
   module SideEffects
     def its_side_effects_are(*options, &block)
-      its_caller = caller.reject { |file_line| file_line =~ /its_side_effects/ }
+      its_caller = caller.grep_v(/its_side_effects/)
       if options.last.is_a?(Hash)
         options.last.merge(called: its_caller)
       else
@@ -16,11 +18,12 @@ def its_side_effects_are(*options, &block)
 
       describe('side effects', *options) do
         if block
+          # rubocop:disable Lint/RescueException, Lint/SuppressedException
           before do
-            # rubocop:disable Lint/HandleExceptions, Lint/RescueException
-            begin; subject; rescue Exception; end
-            # rubocop:enable Lint/HandleExceptions, Lint/RescueException
+            subject
+          rescue Exception
           end
+          # rubocop:enable Lint/RescueException, Lint/SuppressedException
           example(nil, :aggregate_failures, *options, &block)
         else
           example(nil, {}) { subject }
diff --git a/lib/rspec/side_effects/version.rb b/lib/rspec/side_effects/version.rb
index b399c5e..3fdfb81 100644
--- a/lib/rspec/side_effects/version.rb
+++ b/lib/rspec/side_effects/version.rb
@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 module Rspec
   module SideEffects
-    VERSION = '0.2.0'.freeze
+    VERSION = '0.2.0'
   end
 end
diff --git a/rspec-side_effects.gemspec b/rspec-side_effects.gemspec
index fba6e1d..3e776e2 100644
--- a/rspec-side_effects.gemspec
+++ b/rspec-side_effects.gemspec
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'rspec/side_effects/version'
@@ -16,28 +18,29 @@ Gem::Specification.new do |spec|
   spec.files         = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(test|spec|features)/})
   end
-  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '>= 2.2.0'
+  spec.required_ruby_version = '>= 3.1.2'
+
+  spec.metadata['rubygems_mfa_required'] = 'true'
 
-  spec.add_runtime_dependency     'rspec-core', '>= 2.99.0'
+  spec.add_dependency 'rspec-core', '>= 2.99.0'
 
-  spec.add_development_dependency 'bundler', '~> 1.14'
-  spec.add_development_dependency 'rake',    '~> 12.3'
-  spec.add_development_dependency 'rspec',   '~> 3.0'
+  spec.add_development_dependency 'rake',  '~> 13.2'
+  spec.add_development_dependency 'rspec', '~> 3.0'
 
   # Dependencies whose APIs we do not really depend upon, and can be upgraded
   # without limiting.
   spec.add_development_dependency 'bundler-audit'
   spec.add_development_dependency 'license_finder'
-  # HACK: Limit ourselves to Rubocop versions which still support Ruby2.2. This
-  # can be removed once we drop support for Ruby2.2.
-  spec.add_development_dependency 'rubocop', '~> 0.68.0'
+  spec.add_development_dependency 'rubocop'
+  spec.add_development_dependency 'rubocop-performance'
+  spec.add_development_dependency 'rubocop-rake'
   spec.add_development_dependency 'rubocop-rspec'
   spec.add_development_dependency 'simplecov'
+  spec.add_development_dependency 'simplecov-lcov'
   spec.add_development_dependency 'yard'
   spec.add_development_dependency 'yardstick'
 end
diff --git a/spec/rspec/side_effects_spec.rb b/spec/rspec/side_effects_spec.rb
index 903250b..5d3cde5 100644
--- a/spec/rspec/side_effects_spec.rb
+++ b/spec/rspec/side_effects_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 class TestClass
@@ -32,7 +34,7 @@ def test_standard_error
   # @raise [Exception]
   def test_exception
     @exception = :exception
-    raise(Exception)
+    raise(Exception) # rubocop:disable Lint/RaiseException
   end
 end
 
@@ -41,7 +43,7 @@ def test_exception
 
   # @param [#to_s] variable_name
   def expect_instance_variable(variable_name)
-    expect(test_class.instance_variable_get("@#{variable_name}"))
+    expect(test_class.instance_variable_get(:"@#{variable_name}"))
   end
 
   describe '#its_side_effects_are' do
@@ -49,9 +51,9 @@ def expect_instance_variable(variable_name)
       subject { test_class.test1 }
 
       its_side_effects_are do
-        expect_instance_variable(:var1).to eq(:var1)
-        expect_instance_variable(:var2).to eq(nil)
-        expect_instance_variable(:var3).to eq(nil)
+        expect_instance_variable(:var1).to be(:var1)
+        expect_instance_variable(:var2).to be_nil
+        expect_instance_variable(:var3).to be_nil
       end
     end
 
@@ -76,9 +78,9 @@ def expect_instance_variable(variable_name)
     subject { test_class.test2 }
 
     before do
-      # rubocop:disable RSpec/ExpectInHook, RSpec/MessageSpies
+      # rubocop:disable RSpec/ExpectInHook, RSpec/MessageSpies, RSpec/SubjectStub
       expect(test_class).to receive(:inner_test)
-      # rubocop:enable RSpec/ExpectInHook, RSpec/MessageSpies
+      # rubocop:enable RSpec/ExpectInHook, RSpec/MessageSpies, RSpec/SubjectStub
     end
 
     it_has_side_effects
@@ -88,9 +90,9 @@ def expect_instance_variable(variable_name)
     subject { test_class.test1 }
 
     specify_side_effects do
-      expect_instance_variable(:var1).to eq(:var1)
-      expect_instance_variable(:var2).to eq(nil)
-      expect_instance_variable(:var3).to eq(nil)
+      expect_instance_variable(:var1).to be(:var1)
+      expect_instance_variable(:var2).to be_nil
+      expect_instance_variable(:var3).to be_nil
     end
   end
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 31c88a8..538fb60 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,8 +1,24 @@
+# frozen_string_literal: true
+
 require 'bundler/setup'
 
 # Setup code coverage
 require 'simplecov'
-SimpleCov.start
+require 'simplecov-lcov'
+require 'simplecov_json_formatter'
+SimpleCov.start do
+  # NOTE: Include the lcov formatter for CodeClimate reporting.
+  # Even though the simplecov JSON format will be output and used by default,
+  # the test reporter does not handle it reliable.
+  # Using the lcov formatter is more reliable.
+  SimpleCov.formatters = SimpleCov::Formatter::MultiFormatter.new(
+    [
+      SimpleCov::Formatter::HTMLFormatter,
+      SimpleCov::Formatter::JSONFormatter,
+      SimpleCov::Formatter::LcovFormatter
+    ]
+  )
+end
 
 require 'rspec/side_effects'