diff --git a/.github/workflows/flag-new-top-level.yml b/.github/workflows/flag-new-top-level.yml
index 21cce68..31ab105 100644
--- a/.github/workflows/flag-new-top-level.yml
+++ b/.github/workflows/flag-new-top-level.yml
@@ -25,14 +25,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           sparse-checkout: |
             .github/new-top-level-flag.md
           sparse-checkout-cone-mode: false
 
       - name: Flag unexpected new top-level entries
-        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
         with:
           script: |
             const fs = require('fs');
diff --git a/.github/workflows/guard-custom-layer.yml b/.github/workflows/guard-custom-layer.yml
index 64716e3..80c5851 100644
--- a/.github/workflows/guard-custom-layer.yml
+++ b/.github/workflows/guard-custom-layer.yml
@@ -30,14 +30,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           sparse-checkout: |
             .github/custom-layer-autoclose.md
           sparse-checkout-cone-mode: false
 
       - name: Close PR if it touches the custom layer
-        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
         with:
           script: |
             const fs = require('fs');
diff --git a/.github/workflows/knowledge-index.yml b/.github/workflows/knowledge-index.yml
index 0b8765b..8cb086d 100644
--- a/.github/workflows/knowledge-index.yml
+++ b/.github/workflows/knowledge-index.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Validate knowledge-index generator
         shell: pwsh
diff --git a/.github/workflows/release-version.yml b/.github/workflows/release-version.yml
index ad29dae..92af86e 100644
--- a/.github/workflows/release-version.yml
+++ b/.github/workflows/release-version.yml
@@ -34,7 +34,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/review-fixtures.yml b/.github/workflows/review-fixtures.yml
index f20011b..0f39d9a 100644
--- a/.github/workflows/review-fixtures.yml
+++ b/.github/workflows/review-fixtures.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Validate review evaluation corpus
         shell: pwsh
diff --git a/.github/workflows/validate-frontmatter.yml b/.github/workflows/validate-frontmatter.yml
index 17cbbf6..dd7922d 100644
--- a/.github/workflows/validate-frontmatter.yml
+++ b/.github/workflows/validate-frontmatter.yml
@@ -11,10 +11,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Set up Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.12"