diff --git a/app/service_invite/rest.py b/app/service_invite/rest.py
index dd76ad2bd..f6d9627da 100644
--- a/app/service_invite/rest.py
+++ b/app/service_invite/rest.py
@@ -86,7 +86,7 @@ def _create_service_invite(invited_user, invite_link_host):
     redis_store.set(
         f"email-personalisation-{saved_notification.id}",
         json.dumps(personalisation),
-        ex=1800,
+        ex=2*24*60*60,
     )
     send_notification_to_queue(saved_notification, queue=QueueNames.NOTIFY)