diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 56e23ed..2e6bf21 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0e1b6a9..5b5f032 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,7 +18,7 @@ jobs:
     name: release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-node@v5
         with:
           node-version: lts/*
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 56f2285..3de6386 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,7 @@ jobs:
           - 22
           - 24
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Use Node.js ${{ matrix.node_version }}
         uses: actions/setup-node@v5
         with:
@@ -31,7 +31,7 @@ jobs:
     steps:
       - run: exit 1
         if: ${{ needs.test_matrix.result != 'success' }}
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: npm ci
       - run: npm run lint
       - run: npm run test:ts
diff --git a/.github/workflows/update-prettier.yml b/.github/workflows/update-prettier.yml
index 4f84336..8b41d1d 100644
--- a/.github/workflows/update-prettier.yml
+++ b/.github/workflows/update-prettier.yml
@@ -12,7 +12,7 @@ jobs:
         with:
           app-id: ${{ vars.OCTOKIT_APP_ID }}
           private-key: ${{ secrets.OCTOKIT_APP_PRIVATE_KEY }}
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-node@v5
         with:
           cache: npm
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index c83c4d2..59bbf42 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -18,7 +18,7 @@ jobs:
         with:
           app-id: ${{ vars.OCTOKIT_APP_ID }}
           private-key: ${{ secrets.OCTOKIT_APP_PRIVATE_KEY }}
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           token: ${{ steps.app-token.outputs.token }}
       - uses: actions/setup-node@v5