diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index fc7e26c..9878f0b 100644
--- a/.github/workflows/claude-code-review.yml
+++ b/.github/workflows/claude-code-review.yml
@@ -78,7 +78,7 @@ jobs:
         if: steps.gate.outputs.decision == 'run'
         # Intentionally tracks the major-version tag (not a pinned SHA) so
         # upstream fixes are picked up automatically.
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: ${{ github.event.pull_request.head.repo.full_name }}
           ref: ${{ github.event.pull_request.head.sha }}
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index c85ec00..9c9cdb6 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -31,7 +31,7 @@ jobs:
       - name: Checkout repository
         # Intentionally tracks the major-version tag (not a pinned SHA) so
         # upstream fixes are picked up automatically.
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
           persist-credentials: false