diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index 4836bf71..ace1b08e 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -6,22 +6,29 @@ on:
   pull_request:
     branches: [master]
 
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}'
+  cancel-in-progress: true
+
 jobs:
   rubocop:
     name: Rubocop
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        os: [ubuntu-latest]
-        ruby: [
-            2.7
-        ]
+        ruby-version:
+          # - "3.0"
+          # - "3.1"
+          # - "3.2"
+          - "3.3"
 
     steps:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: ${{ matrix.ruby }}
+          ruby-version: ${{ matrix.ruby-version }}
           bundler-cache: true
       - name: Ruby linter
         run: bundle exec rubocop
diff --git a/.rubocop.yml b/.rubocop.yml
index 26a0a3d0..d01a218f 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -19,3 +19,5 @@ Metrics/PerceivedComplexity:
   Enabled: false
 Metrics/ClassLength:
   Max: 110
+Style/FrozenStringLiteralComment:
+  Enabled: false
diff --git a/Gemfile b/Gemfile
index e11c648f..8e980e49 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,3 @@
-# vim:fileencoding=utf-8
 source 'https://rubygems.org'
 
 case resque_version = ENV.fetch('RESQUE', 'latest')
diff --git a/Rakefile b/Rakefile
index 763604e0..cd3a078b 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,4 +1,3 @@
-# vim:fileencoding=utf-8
 require 'bundler/gem_tasks'
 require 'rake/testtask'
 require 'yard'
diff --git a/exe/resque-scheduler b/exe/resque-scheduler
index f26121d1..2c34d5e8 100755
--- a/exe/resque-scheduler
+++ b/exe/resque-scheduler
@@ -1,5 +1,4 @@
 #!/usr/bin/env ruby
-# vim:fileencoding=utf-8
 
 require 'resque-scheduler'
 Resque::Scheduler::Cli.run!
diff --git a/resque-scheduler.gemspec b/resque-scheduler.gemspec
index 27f8eb34..e9e7b1cc 100644
--- a/resque-scheduler.gemspec
+++ b/resque-scheduler.gemspec
@@ -1,5 +1,4 @@
-# vim:fileencoding=utf-8
-lib = File.expand_path('../lib', __FILE__)
+lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'resque/scheduler/version'
 
@@ -13,15 +12,15 @@ Gem::Specification.new do |spec|
     Dan Buch
     Michael Bianco
     Patrick Tulskie
-  EOF
-  spec.email = %w(
+  AUTHORS
+  spec.email = %w[
     bvandenbos@gmail.com
     sirup@sirupsen.com
     ryan@yaauie.com
     dan@meatballhat.com
     mike@mikebian.co
     patricktulskie@gmail.com
-  )
+  ]
   spec.summary = 'Light weight job scheduling on top of Resque'
   spec.description = <<-DESCRIPTION
     Light weight job scheduling on top of Resque.
@@ -32,7 +31,7 @@ Gem::Specification.new do |spec|
   spec.license = 'MIT'
   spec.metadata['rubygems_mfa_required'] = 'true'
 
-  spec.required_ruby_version = '>= 2.3.0'
+  spec.required_ruby_version = '>= 3.0.0'
 
   spec.files = `git ls-files -z`.split("\0").reject do |f|
     f.match(%r{^(test|spec|features|examples|bin|tasks)/}) ||
@@ -41,7 +40,7 @@ Gem::Specification.new do |spec|
   end
   spec.bindir = 'exe'
   spec.executables = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
-  spec.require_paths = %w(lib)
+  spec.require_paths = %w[lib]
 
   spec.add_dependency 'mono_logger', '~> 1.0'
   spec.add_dependency 'redis', '>= 3.3'