diff --git a/src/contentScripts/communityConsole/avatars.js b/src/contentScripts/communityConsole/avatars.js
index 5e5eeee..ddc6e3c 100644
--- a/src/contentScripts/communityConsole/avatars.js
+++ b/src/contentScripts/communityConsole/avatars.js
@@ -125,7 +125,6 @@
             // The following fields are useful for the cache and can be
             // undefined, but this is checked before adding an entry to the
             // cache.
-            updatedTimestamp: data?.['1']?.['2']?.['1']?.['4'],
             lastMessageId: data?.['1']?.['2']?.['10'],
           };
         });
@@ -136,8 +135,6 @@
     return this.getFirstMessages(thread).then(result => {
       var messages = result.messages;
       var author = result.author;
-      var updatedTimestamp =
-          Math.floor(Number.parseInt(result.updatedTimestamp) / 1000000);
       var lastMessageId = result.lastMessageId;
 
       var avatarUrls = [];
@@ -154,10 +151,9 @@
       }
 
       // Add entry to cache if all the extra metadata could be retrieved.
-      if (updatedTimestamp !== undefined && lastMessageId !== undefined)
+      if (lastMessageId !== undefined)
         this.db.putCacheEntry({
           threadId: thread.thread,
-          updatedTimestamp,
           lastMessageId,
           avatarUrls,
           num,
diff --git a/src/contentScripts/communityConsole/utils/AvatarsDB.js b/src/contentScripts/communityConsole/utils/AvatarsDB.js
index a8c155c..ba32fea 100644
--- a/src/contentScripts/communityConsole/utils/AvatarsDB.js
+++ b/src/contentScripts/communityConsole/utils/AvatarsDB.js
@@ -90,20 +90,15 @@
     var promises = [];
     threads.forEach(t => {
       var id = t?.['2']?.['1']?.['1'];
-      var currentUpdatedTimestamp =
-          Math.floor(Number.parseInt(t?.['2']?.['1']?.['4']) / 1000000);
       var currentLastMessageId = t?.['2']?.['10'];
 
-      if (id === undefined || currentUpdatedTimestamp === undefined ||
-          currentLastMessageId === undefined)
-        return;
+      if (id === undefined || currentLastMessageId === undefined) return;
 
       promises.push(this.getCacheEntry(id).then(entry => {
         if (entry === undefined) return;
 
         // If the cache entry is still valid.
-        if (currentLastMessageId == entry.lastMessageId ||
-            currentUpdatedTimestamp <= entry.updatedTimestamp) {
+        if (currentLastMessageId == entry.lastMessageId) {
           entry.lastUsedTimestamp = Math.floor(Date.now() / 1000);
           return this.putCacheEntry(entry).catch(err => {
             console.error(