diff --git a/services/notifications/app/js/HealthCheckController.js b/services/notifications/app/js/HealthCheckController.js
index c46edf3084..4eb289cc62 100644
--- a/services/notifications/app/js/HealthCheckController.js
+++ b/services/notifications/app/js/HealthCheckController.js
@@ -87,7 +87,7 @@ async function deleteNotification(userId, notificationId, notificationKey) {
     await fetchNothing(deleteByKeyUrl, {
       signal: AbortSignal.timeout(5000),
       method: 'DELETE',
-      body: {
+      json: {
         key: notificationKey,
       },
     })