diff --git a/.github/workflows/guardrails.yml b/.github/workflows/guardrails.yml
index 480aa82a..67e7659f 100644
--- a/.github/workflows/guardrails.yml
+++ b/.github/workflows/guardrails.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       # 1. Block secret keys
       - name: Detect secrets