diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..28532b0
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,28 @@
+name: Push gem
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  push:
+    name: Push gem to RubyGems.org
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+      id-token: write
+
+    environment: Release
+
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+          ruby-version: ruby
+      - uses: rubygems/release-gem@v1
diff --git a/.github/workflows/ruby.yml b/.github/workflows/test.yml
similarity index 85%
rename from .github/workflows/ruby.yml
rename to .github/workflows/test.yml
index babc2bb..5a930b3 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/test.yml
@@ -1,3 +1,4 @@
+
 name: Test
 
 on:
@@ -13,9 +14,9 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        ruby: ["3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.3", "3.4", "4.0"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Ruby versions
         uses: ruby/setup-ruby@v1
         with:
diff --git a/.rubocop.yml b/.rubocop.yml
index d66ca94..9d548c8 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,6 +1,6 @@
 AllCops:
   NewCops: enable
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 3.3
 
 Metrics/MethodLength:
   Enabled: false
diff --git a/Gemfile b/Gemfile
index 0f4004b..fca7f38 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,5 +2,10 @@ source 'https://rubygems.org'
 
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
-# Specify your gem's dependencies in methodfinder.gemspec
-gemspec
+group :development do
+  gem 'rake'
+  gem 'rdoc'
+  gem 'rubocop', '~> 1.22'
+end
+
+gem 'minitest', '~> 5.15', group: :test
diff --git a/Gemfile.lock b/Gemfile.lock
index 1ee635f..59c315d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,52 +1,43 @@
-PATH
-  remote: .
-  specs:
-    methodfinder (2.2.5)
-
 GEM
   remote: https://rubygems.org/
   specs:
-    ast (2.4.2)
-    json (2.7.2)
-    language_server-protocol (3.17.0.3)
-    minitest (5.25.1)
-    parallel (1.26.3)
-    parser (3.3.5.0)
+    ast (2.4.3)
+    json (2.19.8)
+    language_server-protocol (3.17.0.5)
+    lint_roller (1.1.0)
+    minitest (5.27.0)
+    parallel (2.1.0)
+    parser (3.3.11.1)
       ast (~> 2.4.1)
       racc
-    psych (5.1.2)
-      stringio
+    prism (1.9.0)
     racc (1.8.1)
     rainbow (3.1.1)
-    rake (13.2.1)
-    rdoc (6.7.0)
-      psych (>= 4.0.0)
-    regexp_parser (2.9.2)
-    rubocop (1.67.0)
+    regexp_parser (2.12.0)
+    rubocop (1.87.0)
       json (~> 2.3)
-      language_server-protocol (>= 3.17.0)
-      parallel (~> 1.10)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.1.0)
+      parallel (>= 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 2.4, < 3.0)
-      rubocop-ast (>= 1.32.2, < 2.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.49.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.32.3)
-      parser (>= 3.3.1.0)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.49.1)
+      parser (>= 3.3.7.2)
+      prism (~> 1.7)
     ruby-progressbar (1.13.0)
-    stringio (3.1.1)
-    unicode-display_width (2.6.0)
+    unicode-display_width (3.2.0)
+      unicode-emoji (~> 4.1)
+    unicode-emoji (4.2.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  bundler (~> 2.3)
-  methodfinder!
-  minitest (~> 5.0)
-  rake (~> 13.0)
-  rdoc (~> 6.5)
+  minitest (~> 5.15)
   rubocop (~> 1.22)
 
 BUNDLED WITH
diff --git a/methodfinder.gemspec b/methodfinder.gemspec
index 8b93f50..dffefa1 100644
--- a/methodfinder.gemspec
+++ b/methodfinder.gemspec
@@ -17,16 +17,11 @@ Gem::Specification.new do |spec|
     'bug_tracker_uri' => 'https://todo.sr.ht/~citizen428/methodfinder',
     'source_code_uri' => 'https://git.sr.ht/~citizen428/methodfinder/tree',
     'mailing_list_uri' => 'https://lists.sr.ht/~citizen428/public-inbox',
-    'wiki_uri' => 'https://man.sr.ht/~citizen428/MethodFinder/'
+    'wiki_uri' => 'https://man.sr.ht/~citizen428/MethodFinder/',
+    'rubygems_mfa_required' => 'true'
   }
 
   spec.files = `git ls-files -z *.md LICENSE.txt lib`.split("\0")
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.6'
-
-  spec.add_development_dependency 'bundler', '~> 2.3'
-  spec.add_development_dependency 'minitest', '~> 5.0'
-  spec.add_development_dependency 'rake', '~> 13.0'
-  spec.add_development_dependency 'rdoc', '~> 6.5'
-  spec.add_development_dependency 'rubocop', '~> 1.22'
+  spec.required_ruby_version = '>= 3.3'
 end