diff --git a/.github/workflows/auto-close-duplicates.yml b/.github/workflows/auto-close-duplicates.yml
index b6ca0563fe..6612c98a03 100644
--- a/.github/workflows/auto-close-duplicates.yml
+++ b/.github/workflows/auto-close-duplicates.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Bun
         uses: oven-sh/setup-bun@v2
diff --git a/.github/workflows/backfill-duplicate-comments.yml b/.github/workflows/backfill-duplicate-comments.yml
index acce8f9088..a4253e8ae0 100644
--- a/.github/workflows/backfill-duplicate-comments.yml
+++ b/.github/workflows/backfill-duplicate-comments.yml
@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Setup Bun
         uses: oven-sh/setup-bun@v2
diff --git a/.github/workflows/claude-dedupe-issues.yml b/.github/workflows/claude-dedupe-issues.yml
index afcdf9f538..012152ab3f 100644
--- a/.github/workflows/claude-dedupe-issues.yml
+++ b/.github/workflows/claude-dedupe-issues.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Run Claude Code slash command
         uses: anthropics/claude-code-base-action@beta
diff --git a/.github/workflows/claude-issue-triage.yml b/.github/workflows/claude-issue-triage.yml
index 49f3d547c3..a125eda5e2 100644
--- a/.github/workflows/claude-issue-triage.yml
+++ b/.github/workflows/claude-issue-triage.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Create triage prompt
         run: |
diff --git a/.github/workflows/oncall-triage.yml b/.github/workflows/oncall-triage.yml
index 8cb0a9825a..d612e99dd5 100644
--- a/.github/workflows/oncall-triage.yml
+++ b/.github/workflows/oncall-triage.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Create oncall triage prompt
         run: |
diff --git a/plugins/plugin-dev/skills/command-development/references/testing-strategies.md b/plugins/plugin-dev/skills/command-development/references/testing-strategies.md
index 7b482fbe62..e5f51a1f04 100644
--- a/plugins/plugin-dev/skills/command-development/references/testing-strategies.md
+++ b/plugins/plugin-dev/skills/command-development/references/testing-strategies.md
@@ -428,7 +428,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
 
       - name: Validate command structure
         run: |