diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 65d20da..7f98f8e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu]
-        ruby-version: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby-version: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3", "3.4"]
     steps:
       - uses: actions/checkout@v2
       - name: Setup Ruby ${{ matrix.ruby-version }}
@@ -19,6 +19,6 @@ jobs:
           bundler-cache: true
       - name: Build and run tests
         run: |
-          gem install bundler -v 2.4.6
+          gem install bundler -v 2.4.22
           bundle install --jobs 4 --retry 3
           bundle exec rake
diff --git a/.gitignore b/.gitignore
index 912b873..3ca70ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,5 @@
 
 .ruby-version
 .tool-versions
+
+Gemfile.lock
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5af544c..4cbe885 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * [FEATURE: Add Skunk HTML Report](https://github.com/fastruby/skunk/pull/123)
 * [FEATURE: Add Skunk::Config class](https://github.com/fastruby/skunk/pull/123)
+* [FEATURE: Add Ruby 3.4 compatibility](https://github.com/fastruby/skunk/pull/124)
 
 ## v0.5.4 / 2025-05-05 [(commits)](https://github.com/fastruby/skunk/compare/v0.5.3...v0.5.4)
 
diff --git a/skunk.gemspec b/skunk.gemspec
index 732e68b..15d9cf4 100644
--- a/skunk.gemspec
+++ b/skunk.gemspec
@@ -38,6 +38,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
+  spec.add_dependency "base64", "~> 0.3.0"
   spec.add_dependency "rubycritic", ">= 4.5.2", "< 5.0"
   spec.add_dependency "terminal-table", "~> 3.0"