diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 15c20cd888..2cc35fde6d 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -38,11 +38,11 @@ jobs:
       fail-fast: false # don't fail all matrix builds if one fails
       matrix:
         ruby:
-          - '3.0'
           - '3.1'
           - '3.2'
           - '3.3'
           - '3.4'
+          - '4.0'
           - 'head'
           - truffleruby-head
     continue-on-error: ${{ endsWith(matrix.ruby, 'head') }}
@@ -53,13 +53,7 @@ jobs:
         ruby-version: ${{ matrix.ruby }}
 
     - name: Install dependencies
-      run:  |
-        if [[ "${{ matrix.ruby }}" < "3.1" ]]; then
-          gem install bundler:2.4.22
-          bundle _2.4.22_ install
-        else
-          bundle install
-        fi
+      run: bundle install
 
     - name: Run tests
       run: bundle exec rake test
diff --git a/.rubocop.yml b/.rubocop.yml
index 8e415bdc85..a0e62b8292 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,7 +3,7 @@ plugins:
   - rubocop-rake
 
 AllCops:
-  TargetRubyVersion: 3.0
+  TargetRubyVersion: 3.1
   NewCops: enable
 
 # Suppress noise for obvious operator precedence.
diff --git a/faker.gemspec b/faker.gemspec
index b13fed9e55..9455a5e572 100644
--- a/faker.gemspec
+++ b/faker.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.bindir        = 'bin'
   spec.executables   = ['faker']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 3.0'
+  spec.required_ruby_version = '>= 3.1'
 
   spec.metadata['changelog_uri'] = 'https://github.com/faker-ruby/faker/blob/main/CHANGELOG.md'
   spec.metadata['source_code_uri'] = 'https://github.com/faker-ruby/faker'
diff --git a/lib/faker.rb b/lib/faker.rb
index 5e5bb5924e..4c2a487a46 100644
--- a/lib/faker.rb
+++ b/lib/faker.rb
@@ -65,8 +65,8 @@ def bothify(string)
         letterify(numerify(string))
       end
 
-      def generate(as_type, &block)
-        PositionalGenerator.new(as_type, &block).generate
+      def generate(as_type, &)
+        PositionalGenerator.new(as_type, &).generate
       end
 
       # Given a regular expression, attempt to generate a string
@@ -195,7 +195,7 @@ def flexible(key)
       #   name:
       #     girls_name: ["Alice", "Cheryl", "Tatiana"]
       # Then you can call Faker::Name.girls_name and it will act like #first_name
-      def method_missing(mth, *args, &block)
+      def method_missing(mth, *args, &)
         super unless flexible_key
 
         if (translation = translate("faker.#{flexible_key}.#{mth}"))