diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3a2aa33..fcedb09 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -179,7 +179,7 @@ jobs:
       # Sigstore-signed SLSA build-provenance attestation (keyless: Fulcio + Rekor), pushed as an
       # OCI referrer — what protector's provenance observer verifies to "provenance-verified".
       - name: Attest build provenance (Sigstore-signed SLSA)
-        uses: actions/attest-build-provenance@96b4a1ef7235a096b17240c259729fdd70c83d45 # v2
+        uses: actions/attest-build-provenance@e8998f949152b193b063cb0ec769d69d929409be # v2
         with:
           subject-name: ghcr.io/${{ github.repository_owner }}/watcher-server
           subject-digest: ${{ steps.build.outputs.digest }}