diff --git a/.github/workflows/deploy-branch-preview.yml b/.github/workflows/deploy-branch-preview.yml
index e56d9c27..4aa676da 100644
--- a/.github/workflows/deploy-branch-preview.yml
+++ b/.github/workflows/deploy-branch-preview.yml
@@ -12,7 +12,7 @@ jobs:
   deploy-branch-preview:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Set up Python 3.11
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/deploy-latest.yml b/.github/workflows/deploy-latest.yml
index 7349a1ab..18c01fdc 100644
--- a/.github/workflows/deploy-latest.yml
+++ b/.github/workflows/deploy-latest.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out datasette
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/prettier.yml b/.github/workflows/prettier.yml
index 77cce7d1..735e14e9 100644
--- a/.github/workflows/prettier.yml
+++ b/.github/workflows/prettier.yml
@@ -10,8 +10,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out repo
-      uses: actions/checkout@v4
-    - uses: actions/cache@v4
+      uses: actions/checkout@v6
+    - uses: actions/cache@v5
       name: Configure npm caching
       with:
         path: ~/.npm
diff --git a/.github/workflows/push_docker_tag.yml b/.github/workflows/push_docker_tag.yml
index afe8d6b2..e622ef4c 100644
--- a/.github/workflows/push_docker_tag.yml
+++ b/.github/workflows/push_docker_tag.yml
@@ -13,7 +13,7 @@ jobs:
   deploy_docker:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v6
     - name: Build and push to Docker Hub
       env:
         DOCKER_USER: ${{ secrets.DOCKER_USER }}
diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
index d42ae96b..9a808194 100644
--- a/.github/workflows/spellcheck.yml
+++ b/.github/workflows/spellcheck.yml
@@ -9,7 +9,7 @@ jobs:
   spellcheck:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/stable-docs.yml b/.github/workflows/stable-docs.yml
index 3119d617..59b5fbc0 100644
--- a/.github/workflows/stable-docs.yml
+++ b/.github/workflows/stable-docs.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0  # We need all commits to find docs/ changes
     - name: Set up Git user
diff --git a/.github/workflows/test-coverage.yml b/.github/workflows/test-coverage.yml
index 1b3d2f2c..c514048e 100644
--- a/.github/workflows/test-coverage.yml
+++ b/.github/workflows/test-coverage.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out datasette
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/test-pyodide.yml b/.github/workflows/test-pyodide.yml
index b490a9bf..5162c47a 100644
--- a/.github/workflows/test-pyodide.yml
+++ b/.github/workflows/test-pyodide.yml
@@ -12,7 +12,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
@@ -20,7 +20,7 @@ jobs:
         cache: 'pip'
         cache-dependency-path: '**/pyproject.toml'
     - name: Cache Playwright browsers
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: ~/.cache/ms-playwright/
         key: ${{ runner.os }}-browsers
diff --git a/.github/workflows/test-sqlite-support.yml b/.github/workflows/test-sqlite-support.yml
index c81a3c0b..23fce459 100644
--- a/.github/workflows/test-sqlite-support.yml
+++ b/.github/workflows/test-sqlite-support.yml
@@ -25,7 +25,7 @@ jobs:
           #"3.23.1" # 2018-04-10, before UPSERT
         ]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/tmate-mac.yml b/.github/workflows/tmate-mac.yml
index fcee0f21..a033cd92 100644
--- a/.github/workflows/tmate-mac.yml
+++ b/.github/workflows/tmate-mac.yml
@@ -10,6 +10,6 @@ jobs:
   build:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v6
     - name: Setup tmate session
       uses: mxschmitt/action-tmate@v3
diff --git a/.github/workflows/tmate.yml b/.github/workflows/tmate.yml
index 123f6c71..72af1eec 100644
--- a/.github/workflows/tmate.yml
+++ b/.github/workflows/tmate.yml
@@ -11,7 +11,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v6
     - name: Setup tmate session
       uses: mxschmitt/action-tmate@v3
       env: