diff --git a/.github/workflows/blob-size-policy.yml b/.github/workflows/blob-size-policy.yml
index 7dd6d2839f..176f368938 100644
--- a/.github/workflows/blob-size-policy.yml
+++ b/.github/workflows/blob-size-policy.yml
@@ -10,6 +10,9 @@ jobs:
     permissions:
       contents: read
     steps:
+      - uses: openai/fence@e6b39c80c51cb2b2a39448ddeff74b3b886c0a63 # pin@v0.10.0
+        with:
+          mode: audit
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}