diff --git a/.github/workflows/jekyll.yml b/.github/workflows/jekyll.yml
index f47bac6e..e055309e 100644
--- a/.github/workflows/jekyll.yml
+++ b/.github/workflows/jekyll.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0 # full history: needed to restore file mtimes from git
       # jekyll-sitemap derives <lastmod> from file mtimes; a fresh checkout would
diff --git a/.github/workflows/links.yml b/.github/workflows/links.yml
index 70a10afe..3be5723f 100644
--- a/.github/workflows/links.yml
+++ b/.github/workflows/links.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
       - name: Check links
         id: lychee
         uses: lycheeverse/lychee-action@v2
diff --git a/.github/workflows/refresh-data.yml b/.github/workflows/refresh-data.yml
index 0495209b..f605bee0 100644
--- a/.github/workflows/refresh-data.yml
+++ b/.github/workflows/refresh-data.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
       - name: Setup Python
         uses: actions/setup-python@v5
         with: