diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 91a0dd0..43922ed 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -29,5 +29,6 @@ jobs:
         uses: blue-build/github-action@v1.1.0
         with:
           recipe: ${{ matrix.recipe }}
+          cosign_private_key: ${{ secrets.SIGNING_SECRET }}
           registry_token: ${{ github.token }}
           pr_event_number: ${{ github.event.number }}