diff --git a/.github/workflows/doc.yaml b/.github/workflows/doc.yaml
index 1e29a41..da5d8b3 100644
--- a/.github/workflows/doc.yaml
+++ b/.github/workflows/doc.yaml
@@ -21,13 +21,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install TeX Live
         uses: zauguin/install-texlive@v4
         with:
           package_file: .github/tl_packages
       - name: Checkout fonts for testing
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: wspr/fontspec-test-fonts
           path: fontspec-test-fonts
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index c55f9c8..1ec2004 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - name: Build with Jekyll
@@ -38,7 +38,7 @@ jobs:
         with:
           package_file: .github/tl_packages
       - name: Checkout fonts for testing
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: wspr/fontspec-test-fonts
           path: fontspec-test-fonts
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 6fa905f..0d59093 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -12,13 +12,13 @@ jobs:
     environment: Release
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install TeX Live
         uses: zauguin/install-texlive@v4
         with:
           package_file: .github/tl_packages
       - name: Checkout fonts for testing
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: wspr/fontspec-test-fonts
           path: fontspec-test-fonts
diff --git a/.github/workflows/testing.yaml b/.github/workflows/testing.yaml
index db7d488..3329365 100644
--- a/.github/workflows/testing.yaml
+++ b/.github/workflows/testing.yaml
@@ -42,13 +42,13 @@ jobs:
     name: ${{ matrix.name }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install TeX Live
         uses: zauguin/install-texlive@v4
         with:
           package_file: .github/tl_packages
       - name: Checkout fonts for testing
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: wspr/fontspec-test-fonts
           path: fontspec-test-fonts