diff --git a/keyserver/src/push/send.js b/keyserver/src/push/send.js
--- a/keyserver/src/push/send.js
+++ b/keyserver/src/push/send.js
@@ -3,6 +3,7 @@
 import apn from '@parse/node-apn';
 import type { ResponseFailure } from '@parse/node-apn';
 import invariant from 'invariant';
+import _cloneDeep from 'lodash/fp/cloneDeep';
 import _flow from 'lodash/fp/flow';
 import _mapValues from 'lodash/fp/mapValues';
 import _pickBy from 'lodash/fp/pickBy';
@@ -40,7 +41,12 @@
 import { fetchUserInfos } from '../fetchers/user-fetchers';
 import type { Viewer } from '../session/viewer';
 import { getAPNsNotificationTopic } from './providers';
-import { apnPush, fcmPush, getUnreadCounts } from './utils';
+import {
+  apnPush,
+  fcmPush,
+  getUnreadCounts,
+  apnMaxNotificationPayloadByteSize,
+} from './utils';
 
 type Device = {
   +deviceType: DeviceType,
@@ -499,6 +505,9 @@
   if (collapseKey) {
     notification.collapseId = collapseKey;
   }
+  if (_cloneDeep(notification).length() > apnMaxNotificationPayloadByteSize) {
+    delete notification.payload.messageInfos;
+  }
   return notification;
 }