diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 27ef5be4..a550ae4d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: oven-sh/setup-bun@v2
         with:
@@ -23,7 +23,7 @@ jobs:
   prettier:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: oven-sh/setup-bun@v1
         with:
@@ -38,7 +38,7 @@ jobs:
   typecheck:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: oven-sh/setup-bun@v2
         with:
diff --git a/.github/workflows/claude-review.yml b/.github/workflows/claude-review.yml
index b50b538b..0517d957 100644
--- a/.github/workflows/claude-review.yml
+++ b/.github/workflows/claude-review.yml
@@ -13,7 +13,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index 3ee05274..b567dacf 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -25,7 +25,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/issue-triage.yml b/.github/workflows/issue-triage.yml
index 599df15f..e30df404 100644
--- a/.github/workflows/issue-triage.yml
+++ b/.github/workflows/issue-triage.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 45a960bc..f7f2a172 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -32,7 +32,7 @@ jobs:
       next_version: ${{ steps.next_version.outputs.next_version }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -105,7 +105,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -130,7 +130,7 @@ jobs:
   #   environment: production
   #   steps:
   #     - name: Checkout base-action repo
-  #       uses: actions/checkout@v5
+  #       uses: actions/checkout@v6
   #       with:
   #         repository: anthropics/claude-code-base-action
   #         token: ${{ secrets.CLAUDE_CODE_BASE_ACTION_PAT }}
diff --git a/base-action/README.md b/base-action/README.md
index 0889fa16..495ebf6f 100644
--- a/base-action/README.md
+++ b/base-action/README.md
@@ -339,7 +339,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/docs/faq.md b/docs/faq.md
index 26af2d63..b491343f 100644
--- a/docs/faq.md
+++ b/docs/faq.md
@@ -127,7 +127,7 @@ For performance, Claude uses shallow clones:
 If you need full history, you can configure this in your workflow before calling Claude in the `actions/checkout` step.
 
 ```
-- uses: actions/checkout@v5
+- uses: actions/checkout@v6
   depth: 0 # will fetch full repo history
 ```
 
diff --git a/docs/solutions.md b/docs/solutions.md
index 23150646..8993f66b 100644
--- a/docs/solutions.md
+++ b/docs/solutions.md
@@ -35,7 +35,7 @@ jobs:
       pull-requests: write
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
@@ -89,7 +89,7 @@ jobs:
       pull-requests: write
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
@@ -153,7 +153,7 @@ jobs:
       pull-requests: write
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
@@ -211,7 +211,7 @@ jobs:
       pull-requests: write
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
@@ -268,7 +268,7 @@ jobs:
       pull-requests: write
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
@@ -344,7 +344,7 @@ jobs:
       pull-requests: write
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -456,7 +456,7 @@ jobs:
       pull-requests: write
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.ref }}
           fetch-depth: 0
@@ -513,7 +513,7 @@ jobs:
       security-events: write
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/examples/ci-failure-auto-fix.yml b/examples/ci-failure-auto-fix.yml
index 9d4421db..71abe59d 100644
--- a/examples/ci-failure-auto-fix.yml
+++ b/examples/ci-failure-auto-fix.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.workflow_run.head_branch }}
           fetch-depth: 0
diff --git a/examples/claude.yml b/examples/claude.yml
index aedb2e25..d4d0b6fb 100644
--- a/examples/claude.yml
+++ b/examples/claude.yml
@@ -26,7 +26,7 @@ jobs:
       actions: read # Required for Claude to read CI results on PRs
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/examples/issue-deduplication.yml b/examples/issue-deduplication.yml
index 59cb90d3..00b4bae0 100644
--- a/examples/issue-deduplication.yml
+++ b/examples/issue-deduplication.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/examples/issue-triage.yml b/examples/issue-triage.yml
index 91ef2a35..10d35547 100644
--- a/examples/issue-triage.yml
+++ b/examples/issue-triage.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/examples/manual-code-analysis.yml b/examples/manual-code-analysis.yml
index 0e4c71dd..8b23bf23 100644
--- a/examples/manual-code-analysis.yml
+++ b/examples/manual-code-analysis.yml
@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 2 # Need at least 2 commits to analyze the latest
 
diff --git a/examples/pr-review-comprehensive.yml b/examples/pr-review-comprehensive.yml
index 3002b4dc..a93a3f9f 100644
--- a/examples/pr-review-comprehensive.yml
+++ b/examples/pr-review-comprehensive.yml
@@ -16,7 +16,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/examples/pr-review-filtered-authors.yml b/examples/pr-review-filtered-authors.yml
index 0032720a..9a1d6d73 100644
--- a/examples/pr-review-filtered-authors.yml
+++ b/examples/pr-review-filtered-authors.yml
@@ -18,7 +18,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/examples/pr-review-filtered-paths.yml b/examples/pr-review-filtered-paths.yml
index f465a4bb..0d1232fe 100644
--- a/examples/pr-review-filtered-paths.yml
+++ b/examples/pr-review-filtered-paths.yml
@@ -19,7 +19,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1