diff --git a/.github/workflows/prober-public-good.yml b/.github/workflows/prober-public-good.yml
index d8efefd..ba7f441 100644
--- a/.github/workflows/prober-public-good.yml
+++ b/.github/workflows/prober-public-good.yml
@@ -1,5 +1,7 @@
 name: Public-Good Sigstore Prober
-
+              - name: Attest Build Provenance
+                uses: actions/attest-build-provenance@v1.4.3
+            
 on:
   workflow_dispatch:
   schedule: