diff --git a/.github/actions/smoke-test/action.yaml b/.github/actions/smoke-test/action.yaml
index 85bb8794..9a08778f 100644
--- a/.github/actions/smoke-test/action.yaml
+++ b/.github/actions/smoke-test/action.yaml
@@ -10,7 +10,7 @@ runs:
   steps:
     - name: Checkout main
       id: checkout_release
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Build template
       id: build_template
diff --git a/.github/workflows/containers-typst.yaml b/.github/workflows/containers-typst.yaml
index 317a1a96..3a268561 100644
--- a/.github/workflows/containers-typst.yaml
+++ b/.github/workflows/containers-typst.yaml
@@ -16,7 +16,7 @@ jobs:
       packages: write
     steps:
       - name: "Checkout repository"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Setup QEMU"
         uses: "docker/setup-qemu-action@v3"
diff --git a/.github/workflows/features-release.yaml b/.github/workflows/features-release.yaml
index a8319e88..bbb7481d 100644
--- a/.github/workflows/features-release.yaml
+++ b/.github/workflows/features-release.yaml
@@ -13,7 +13,7 @@ jobs:
       packages: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: "Publish Features"
         uses: devcontainers/action@v1
diff --git a/.github/workflows/features-test.yaml b/.github/workflows/features-test.yaml
index 155ca409..81768bab 100644
--- a/.github/workflows/features-test.yaml
+++ b/.github/workflows/features-test.yaml
@@ -23,7 +23,7 @@ jobs:
           - mcr.microsoft.com/devcontainers/base:ubuntu
           - mcr.microsoft.com/devcontainers/base:debian
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: "Install latest devcontainer CLI"
         run: npm install -g @devcontainers/cli
@@ -40,7 +40,7 @@ jobs:
           - asdf
           - pixi
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: "Install latest devcontainer CLI"
         run: npm install -g @devcontainers/cli
diff --git a/.github/workflows/features-validate.yaml b/.github/workflows/features-validate.yaml
index f85ff7a2..9ec1a603 100644
--- a/.github/workflows/features-validate.yaml
+++ b/.github/workflows/features-validate.yaml
@@ -11,7 +11,7 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: "Validate `**/devcontainer-feature.json`"
         uses: devcontainers/action@v1
diff --git a/.github/workflows/images-latex.yaml b/.github/workflows/images-latex.yaml
index bfb2b21a..859cff10 100644
--- a/.github/workflows/images-latex.yaml
+++ b/.github/workflows/images-latex.yaml
@@ -15,7 +15,7 @@ jobs:
       packages: write
     steps:
       - name: "Checkout repository"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Setup QEMU"
         uses: "docker/setup-qemu-action@v3"
diff --git a/.github/workflows/images-research.yaml b/.github/workflows/images-research.yaml
index 76b6648a..09719d32 100644
--- a/.github/workflows/images-research.yaml
+++ b/.github/workflows/images-research.yaml
@@ -15,7 +15,7 @@ jobs:
       packages: write
     steps:
       - name: "Checkout repository"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Setup QEMU"
         uses: "docker/setup-qemu-action@v3"
diff --git a/.github/workflows/templates-release.yaml b/.github/workflows/templates-release.yaml
index bee68f47..413ac47f 100644
--- a/.github/workflows/templates-release.yaml
+++ b/.github/workflows/templates-release.yaml
@@ -13,7 +13,7 @@ jobs:
       pull-requests: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: "Publish Templates"
         uses: devcontainers/action@v1
diff --git a/.github/workflows/templates-test.yaml b/.github/workflows/templates-test.yaml
index 7fc21d3a..796eebf4 100644
--- a/.github/workflows/templates-test.yaml
+++ b/.github/workflows/templates-test.yaml
@@ -27,7 +27,7 @@ jobs:
       matrix:
         templates: ${{ fromJSON(needs.detect-changes.outputs.templates) }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Smoke test for '${{ matrix.templates }}'
         id: smoke_test
diff --git a/.github/workflows/templates-validate.yaml b/.github/workflows/templates-validate.yaml
index ea029878..aa1a7b12 100644
--- a/.github/workflows/templates-validate.yaml
+++ b/.github/workflows/templates-validate.yaml
@@ -11,7 +11,7 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: "Validate `**/devcontainer-template.json`"
         uses: devcontainers/action@v1