diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 964205a..58b335f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
       run:
         working-directory: ${{ env.APP_DIR }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ env.RUBY_VERSION }}
@@ -38,7 +38,7 @@ jobs:
       run:
         working-directory: ${{ env.APP_DIR }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ env.RUBY_VERSION }}
@@ -56,7 +56,7 @@ jobs:
       run:
         working-directory: ${{ env.APP_DIR }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ env.RUBY_VERSION }}
diff --git a/.github/workflows/danger.yml b/.github/workflows/danger.yml
index 8f98eb6..5167801 100644
--- a/.github/workflows/danger.yml
+++ b/.github/workflows/danger.yml
@@ -22,7 +22,7 @@ jobs:
       run:
         working-directory: ${{ env.APP_DIR }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
diff --git a/.github/workflows/jekyll-gh-pages.yml b/.github/workflows/jekyll-gh-pages.yml
index cda9068..49b31b9 100644
--- a/.github/workflows/jekyll-gh-pages.yml
+++ b/.github/workflows/jekyll-gh-pages.yml
@@ -21,7 +21,7 @@ jobs:
       run:
         working-directory: ${{ env.DOCS_DIR }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/configure-pages@v5
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0dc70ed..7a7ba04 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -23,7 +23,7 @@ jobs:
       run:
         working-directory: ${{ env.APP_DIR }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ env.RUBY_VERSION }}
@@ -40,7 +40,7 @@ jobs:
       run:
         working-directory: ${{ env.APP_DIR }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ env.RUBY_VERSION }}
@@ -58,7 +58,7 @@ jobs:
       run:
         working-directory: ${{ env.APP_DIR }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ env.RUBY_VERSION }}
@@ -101,7 +101,7 @@ jobs:
       id-token: write
     environment: release
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
       - uses: ruby/setup-ruby@v1
diff --git a/.github/workflows/ruby-unit-tests.yml b/.github/workflows/ruby-unit-tests.yml
index c0bdf6f..2ee059e 100644
--- a/.github/workflows/ruby-unit-tests.yml
+++ b/.github/workflows/ruby-unit-tests.yml
@@ -39,7 +39,7 @@ jobs:
           sudo apt-get install --no-install-recommends -y \
             build-essential git libpq-dev libyaml-dev pkg-config
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with: