diff --git a/.github/workflows/backfill-attest.yaml b/.github/workflows/backfill-attest.yaml
index 697ec12..5cb96fa 100644
--- a/.github/workflows/backfill-attest.yaml
+++ b/.github/workflows/backfill-attest.yaml
@@ -19,7 +19,7 @@ jobs:
       attestations: write
       artifact-metadata: write
     steps:
-      - uses: 'google-github-actions/auth@v2'
+      - uses: 'google-github-actions/auth@v3'
         id: auth1
         with:
           workload_identity_provider: projects/1094498259535/locations/global/workloadIdentityPools/gh-image-annotator-webhook/providers/github-by-repos