diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 4c5c6e3..6c12887 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -76,7 +76,7 @@ jobs:
         run: cosign sign --yes ghcr.io/agentrust-io/ca2a-runtime@${DIGEST}
 
       - name: Attest build provenance (SLSA)
-        uses: actions/attest-build-provenance@8beda2b7ed98355c0e97c0a63bec38ae472e66c4 # v4
+        uses: actions/attest-build-provenance@4d101475d8b20a2381f78447822ac1eab6504dd8 # v4
         with:
           subject-name: ghcr.io/agentrust-io/ca2a-runtime
           subject-digest: ${{ steps.build.outputs.digest }}