diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0ef205e..a327321 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,8 +26,8 @@ jobs:
     name: Format, lint and types
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v7
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.13"
           cache: pip
@@ -41,7 +41,7 @@ jobs:
     name: Build and check links
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Clone the language repository
         run: git clone --depth 1 --branch "$UPSTREAM_BRANCH" "$UPSTREAM" .cache/lambda-discipline
@@ -55,7 +55,7 @@ jobs:
         with:
           workspaces: .cache/lambda-discipline
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.13"
           cache: pip
@@ -66,14 +66,14 @@ jobs:
       - name: Build the site
         run: python build.py --no-update
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: site
           path: _site
           include-hidden-files: true
 
       - name: Restore the link checker's cache
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: .lycheecache
           key: lychee-${{ github.sha }}
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 427af8f..eb70a27 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -51,7 +51,7 @@ jobs:
     if: needs.check.outputs.build == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Clone the language repository
         run: git clone --depth 1 --branch "$UPSTREAM_BRANCH" "$UPSTREAM" .cache/lambda-discipline
@@ -65,7 +65,7 @@ jobs:
         with:
           workspaces: .cache/lambda-discipline
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.13"
           cache: pip
@@ -75,7 +75,7 @@ jobs:
       - name: Build the site
         run: python build.py --no-update
 
-      - uses: actions/upload-pages-artifact@v3
+      - uses: actions/upload-pages-artifact@v5
         with:
           path: _site
 
@@ -88,4 +88,4 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5