diff --git a/routes/_actions/addStatusOrNotification.js b/routes/_actions/addStatusOrNotification.js
index c774a1f..419d982 100644
--- a/routes/_actions/addStatusOrNotification.js
+++ b/routes/_actions/addStatusOrNotification.js
@@ -4,6 +4,8 @@ import { database } from '../_database/database'
 import { mark, stop } from '../_utils/marks'
 import { store } from '../_store/store'
 import { scheduleIdleTask } from '../_utils/scheduleIdleTask'
+import uniqBy from 'lodash/uniqBy'
+import uniq from 'lodash/uniq'
 
 async function getExistingItemIdsSet (instanceName, timelineName) {
   let timelineItemIds = store.getForTimeline(instanceName, timelineName, 'timelineItemIds') || []
@@ -28,6 +30,7 @@ async function insertUpdatesIntoTimeline (instanceName, timelineName, updates) {
   let itemIdsToAdd = store.getForTimeline(instanceName, timelineName, 'itemIdsToAdd') || []
   if (updates && updates.length) {
     itemIdsToAdd = itemIdsToAdd.concat(updates.map(_ => _.id))
+    itemIdsToAdd = uniq(itemIdsToAdd)
     console.log('adding ', itemIdsToAdd.length, 'items to itemIdsToAdd')
     store.setForTimeline(instanceName, timelineName, {itemIdsToAdd: itemIdsToAdd})
   }
@@ -78,6 +81,7 @@ const lazilyProcessFreshUpdates = throttle((instanceName, timelineName) => {
 export function addStatusOrNotification (instanceName, timelineName, newStatusOrNotification) {
   let freshUpdates = store.getForTimeline(instanceName, timelineName, 'freshUpdates') || []
   freshUpdates.push(newStatusOrNotification)
+  freshUpdates = uniqBy(freshUpdates, 'id')
   store.setForTimeline(instanceName, timelineName, {freshUpdates: freshUpdates})
   lazilyProcessFreshUpdates(instanceName, timelineName)
 }