diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 69b9dfb6d..2552c68b2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - run: bundle exec rake confirm_config documentation_syntax_check confirm_documentation
 
@@ -32,6 +32,7 @@ jobs:
           - "3.1"
           - "3.2"
           - "3.3"
+          - "3.4"
           - ruby-head
           - jruby-9.4
         task:
@@ -53,7 +54,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - run: bundle exec rake spec
 
@@ -73,7 +74,7 @@ jobs:
           cat Gemfile.local
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - run: bundle exec rubocop -V
       - run: NO_COVERAGE=true bundle exec rake ${{ matrix.task }}
@@ -94,7 +95,7 @@ jobs:
           cat Gemfile.local
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - run: bundle exec rubocop -V
       - run: NO_COVERAGE=true bundle exec rake ${{ matrix.task }}
@@ -116,7 +117,7 @@ jobs:
           EOF
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - run: NO_COVERAGE=true bundle exec rake spec