diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 4b1b2e9..cedf204 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -149,9 +149,11 @@ jobs:
           echo "Fetching digest for $IMAGE_REF..."
           DIGEST=$(skopeo inspect --creds "${{ github.repository_owner }}:${{ secrets.REGISTRY }}" docker://$IMAGE_REF --format '{{.Digest}}')
 
-          echo "Signing with legacy settings and skipping tlog..."
+          echo "Signing image with explicit Cosign v3 legacy bypass..."
           cosign sign -y \
             --key env://COSIGN_PRIVATE_KEY \
+            --use-signing-config=false \
+            --new-bundle-format=false \
+            --tlog-upload=false \
             --registry-referrers-mode=legacy \
-            --skip-tlog \
             "${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}@${DIGEST}"