diff --git a/scripts/promote-image.sh b/scripts/promote-image.sh
index 46a629e..1e86e9b 100755
--- a/scripts/promote-image.sh
+++ b/scripts/promote-image.sh
@@ -59,10 +59,12 @@ PROJECT=$(echo ${REGISTRY_URL#*/}/${CONTAINER} | sed s,/,%2F,g)
 
 echo -e "Deleting tag:\n  ${CONTAINER}:${TAG}\nFrom:\n  ${PROJECT}"
 
+HEADER="Authorization:Basic $(echo ${HARBOR_USER}:${HARBOR_PASSWD} | base64)"
+
 RESULTS=$(curl --noproxy '*' -s -k \
-  -u "${HARBOR_USER}:${HARBOR_PASSWD}" \
   -i \
   -X DELETE \
+  -H "${HEADER}" \
   -H "accept: application/json" \
   "https://${FQDN}/api/repositories/${PROJECT}/tags/${TAG}")
 
@@ -70,6 +72,8 @@ echo ${RESULTS} | grep -q "HTTP.*200" && {
   echo "Tag deleted successfully."
 } || {
   >&2 echo "Error deleting tag:"
+  >&2 echo "${HARBOR_USER}:${HARBOR_PASSWD}"
+  >&2 echo "${HEADER}"
   >&2 echo "${RESULTS}"
   exit 1
 }