diff --git a/.github/workflows/baseline-ci.yml b/.github/workflows/baseline-ci.yml
index 7a37efb..de76e4f 100644
--- a/.github/workflows/baseline-ci.yml
+++ b/.github/workflows/baseline-ci.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Node
         if: ${{ hashFiles('**/package.json') != '' }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3ba2a0b..a7e8533 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
   docs-smoke:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Basic repository checks
         run: |
           set -euo pipefail
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 02e4077..62feb24 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -17,7 +17,7 @@ jobs:
       contents: read
       security-events: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
         with: