diff --git a/.forgejo/workflows/publish-image.yaml b/.forgejo/workflows/publish-image.yaml
index 736326a..9b572cf 100644
--- a/.forgejo/workflows/publish-image.yaml
+++ b/.forgejo/workflows/publish-image.yaml
@@ -97,8 +97,8 @@ jobs:
             "${BUILD_CONTEXT}"
           PUSH_OUTPUT="$(docker push "${IMAGE}:${SOURCE_TAG}")"
           printf '%s\n' "${PUSH_OUTPUT}"
-          IMAGE_DIGEST="$(printf '%s\n' "${PUSH_OUTPUT}" | awk '/digest: sha256:/{print $2}' | tail -1)"
-          test -n "${IMAGE_DIGEST}"
+          IMAGE_DIGEST="$(printf '%s\n' "${PUSH_OUTPUT}" | tr '\r' '\n' | awk '{for (i=1; i<=NF; i++) if ($i ~ /^sha256:[a-f0-9]{64}$/) print $i}' | tail -1)"
+          printf '%s' "${IMAGE_DIGEST}" | grep -Eq '^sha256:[a-f0-9]{64}$'
           docker push "${IMAGE}:${REVISION_TAG}"
           docker push "${IMAGE}:main"