diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 54634bf6..8ec7f886 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -35,7 +35,7 @@ jobs:
         uses: github/codeql-action/analyze@v3
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.3'
+          ruby-version: '3.4'
           bundler-cache: true
       - name: "Run rufo code formatting checks"
         run: |
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 28fc28f9..9c6120fe 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -13,7 +13,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '3.3'
+        ruby-version: '3.4'
         bundler-cache: true
     - name: Run Yard Doc
       run: |
diff --git a/.github/workflows/spec.yml b/.github/workflows/spec.yml
index 887d4d7c..4f457943 100644
--- a/.github/workflows/spec.yml
+++ b/.github/workflows/spec.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        ruby: ['3.2', '3.3']
+        ruby: ['3.3', '3.4']
     steps:
     - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1