diff --git a/peertube-plugin-auto-mute/README.md b/peertube-plugin-auto-mute/README.md
index fe8020d..dcbf077 100644
--- a/peertube-plugin-auto-mute/README.md
+++ b/peertube-plugin-auto-mute/README.md
@@ -15,6 +15,7 @@ This plugin expects the following JSON format from public blocklists:
   data: {
     value: string
     action?: 'add' | 'remove' // Default is 'add'
+    updatedAt?: string // ISO 8601
   }[]
 }
 ```
@@ -29,6 +30,10 @@ For example:
     },
     {
       value: 'root@peertube.cpy.re'
+    },
+    {
+      value: 'chocobozzz@peertube2.cpy.re',
+      updatedAt: '2020-05-07T14:42:48.954Z'
     }
   ]
 }
@@ -51,3 +56,8 @@ For example, to revert `peertube.cpy.re` from the blocklist, update the JSON:
   ]
 }
 ```
+
+The purpose of the `updatedAt` field is to not override admin mutes/unmutes:
+ * Plugin auto mutes of account A with an `updatedAt: '2020-05-07T14:42:48.954Z'`
+ * Admin thinks this account is fine so it unumutes account A
+ * On another check, the plugin won't re-mute the account A because of the `updatedAt` is before the last check
diff --git a/peertube-plugin-auto-mute/main.js b/peertube-plugin-auto-mute/main.js
index e1f0359..1953dc2 100644
--- a/peertube-plugin-auto-mute/main.js
+++ b/peertube-plugin-auto-mute/main.js
@@ -11,6 +11,7 @@ const store = {
 
 async function register ({
   settingsManager,
+  storageManager,
   peertubeHelpers,
   registerSetting
 }) {
@@ -36,10 +37,10 @@ async function register ({
 
   const settings = await settingsManager.getSettings([ 'check-seconds-interval', 'blocklist-urls' ])
 
-  await load(peertubeHelpers, settings['blocklist-urls'], settings['check-seconds-interval'])
+  await load(peertubeHelpers, storageManager, settings['blocklist-urls'], settings['check-seconds-interval'])
 
   settingsManager.onSettingsChange(settings => {
-    load(peertubeHelpers, settings['blocklist-urls'], settings['check-seconds-interval'])
+    load(peertubeHelpers, storageManager, settings['blocklist-urls'], settings['check-seconds-interval'])
       .catch(err => logger.error('Cannot load auto mute plugin.', { err }))
   })
 }
@@ -55,7 +56,7 @@ module.exports = {
 
 // ############################################################################
 
-async function load (peertubeHelpers, blocklistUrls, checkIntervalSeconds) {
+async function load (peertubeHelpers, storageManager, blocklistUrls, checkIntervalSeconds) {
   const { logger } = peertubeHelpers
 
   if (store.timeout) clearTimeout(store.timeout)
@@ -72,17 +73,27 @@ async function load (peertubeHelpers, blocklistUrls, checkIntervalSeconds) {
 
   logger.info('Loaded %d blocklist URLs for auto mute plugin.', store.urls.length, { urls: store.urls })
 
-  runLater(peertubeHelpers)
+  runLater(peertubeHelpers, storageManager)
 }
 
-async function runCheck (peertubeHelpers) {
+async function runCheck (peertubeHelpers, storageManager) {
   const { logger } = peertubeHelpers
 
-  if (store.urls.length === 0) return runLater(peertubeHelpers)
+  if (store.urls.length === 0) return runLater(peertubeHelpers, storageManager)
+
+  let lastChecks = await storageManager.getData('last-checks')
+  if (!lastChecks) lastChecks = {}
+
+  const newLastCheck = {}
 
   for (const url of store.urls) {
     try {
       const { data } = await get(url)
+      newLastCheck[url] = new Date().toISOString()
+
+      const lastCheckTime = lastChecks[url]
+        ? new Date(lastChecks[url]).getTime()
+        : 0
 
       if (Array.isArray(data.data) === false) {
         throw new Error('JSON response is not valid.')
@@ -91,6 +102,13 @@ async function runCheck (peertubeHelpers) {
       for (const entity of data.data) {
         if (!entity.value) throw new Error('JSON entity is not valid.')
 
+        // We already checked this entity?
+        if (entity.updatedAt) {
+          const updatedAtTime = new Date(entity.updatedAt).getTime()
+
+          if (updatedAtTime < lastCheckTime) continue
+        }
+
         if (entity.action === 'remove') await removeEntity(peertubeHelpers, entity.value)
         else await addEntity(peertubeHelpers, entity.value)
       }
@@ -99,15 +117,19 @@ async function runCheck (peertubeHelpers) {
     }
   }
 
-  runLater(peertubeHelpers)
+  await storageManager.storeData('last-checks', newLastCheck)
+
+  runLater(peertubeHelpers, storageManager)
 }
 
-function runLater (peertubeHelpers) {
+function runLater (peertubeHelpers, storageManager) {
   const { logger } = peertubeHelpers
 
   logger.debug('Will run auto mute check in %d seconds.', store.checkIntervalSeconds)
 
-  store.timeout = setTimeout(() => runCheck(peertubeHelpers), store.checkIntervalSeconds * 1000)
+  store.timeout = setTimeout(() => {
+    runCheck(peertubeHelpers, storageManager)
+  }, store.checkIntervalSeconds * 1000)
 }
 
 function get (url) {
diff --git a/peertube-plugin-auto-mute/package.json b/peertube-plugin-auto-mute/package.json
index 2db2908..8de6d7b 100644
--- a/peertube-plugin-auto-mute/package.json
+++ b/peertube-plugin-auto-mute/package.json
@@ -1,6 +1,6 @@
 {
   "name": "peertube-plugin-auto-mute",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "Auto mute plugin for PeerTube",
   "engine": {
     "peertube": ">=2.2.0"