diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 6f5e079..9f44032 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -15,4 +15,6 @@ jobs:
         ruby-version: 3.4
         bundler-cache: true
     - name: Run test
+      env:
+        DOCKER_BUILDKIT: 1
       run: bundle exec rake
diff --git a/Rakefile b/Rakefile
index 9498b97..80ba260 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,6 +1,9 @@
 require 'rake'
 require 'rspec/core/rake_task'
 
+# Enable Docker BuildKit for faster builds with better caching
+ENV['DOCKER_BUILDKIT'] = '1'
+
 task :spec    => 'spec:all'
 task :default => :spec