diff --git a/notifications_routing/utils.py b/notifications_routing/utils.py
index 9dcba61a5ce797d9858bcbea5ad1b690ab6bc42e..100bb94a4369949d6ab1d53047dd24a59c1f5d68 100644
--- a/notifications_routing/utils.py
+++ b/notifications_routing/utils.py
@@ -114,7 +114,7 @@ def convert_notification_push_to_json_string(message, device_id: str, device_tok
             "link": message[OutputMessageKeys.LINK],
             "img_url": message[OutputMessageKeys.IMGURL],
             "device_token": device_token,
-            "device_id": device_id,
+            "device_id": str(device_id),
             "encoding": encoding,
             "priority": message[OutputMessageKeys.PRIORITY],
             "notification_id": message[OutputMessageKeys.ID],