diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 4232c0b..c537bbb 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -41,9 +41,9 @@ jobs:
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@d6a3abf1bdea83574e28d40543793018b6035605
+        uses: sigstore/cosign-installer@7e0881f8fe90b25e305bbf0309761e9314607e25
         with:
-          cosign-release: 'v1.7.1'
+          cosign-release: 'v1.9.0'
 
 
       # Workaround: https://github.com/docker/build-push-action/issues/461
@@ -90,4 +90,4 @@ jobs:
           COSIGN_EXPERIMENTAL: "true"
         # This step uses the identity token to provision an ephemeral certificate
         # against the sigstore community Fulcio instance.
-        run: cosign sign ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build-and-push.outputs.digest }}
+        run: echo "${{ steps.meta.outputs.tags }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }}