diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index a509ab8c..c5313a55 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -19,15 +19,18 @@ jobs:
       ruby_version: ${{ steps.ruby_version.outputs.versions }}
     steps:
       - uses: actions/checkout@v5
+      - id: ruby_version
+        uses: voxpupuli/ruby-version@v1
+      - id: min_ruby
+        run: echo "version=$(echo '${{ steps.ruby_version.outputs.versions }}' | jq -r '.[-1]')" >> $GITHUB_OUTPUT
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.7
+          # Use the minimum supported Ruby version for rubocop (last in descending list)
+          ruby-version: ${{ steps.min_ruby.outputs.version }}
           bundler-cache: true
       - name: Run rubocop
         run: bundle exec rubocop
-      - id: ruby_version
-        uses: voxpupuli/ruby-version@v1
 
   test:
     runs-on: ubuntu-latest
diff --git a/.rubocop.yml b/.rubocop.yml
index be83e32c..247b7c21 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -33,3 +33,6 @@ Metrics/ModuleLength:
 
 Style/LambdaCall:
   Enabled: false
+
+Gemspec/RequiredRubyVersion:
+  Enabled: false
diff --git a/dynflow.gemspec b/dynflow.gemspec
index c6922d2b..39856899 100644
--- a/dynflow.gemspec
+++ b/dynflow.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.require_paths = ["lib"]
 
-  s.required_ruby_version = '>= 2.7.0'
+  s.required_ruby_version = '>= 3.0.0'
 
   s.add_dependency "algebrick", '~> 0.7.0'
   s.add_dependency "concurrent-ruby", '~> 1.1.3'