diff --git a/public/images/avatar.png b/public/images/avatar.png
new file mode 100644
index 0000000..175370f
Binary files /dev/null and b/public/images/avatar.png differ
diff --git a/resources/views/components/sidebar.blade.php b/resources/views/components/sidebar.blade.php
index 2c2ce74..c426852 100644
--- a/resources/views/components/sidebar.blade.php
+++ b/resources/views/components/sidebar.blade.php
@@ -55,9 +55,7 @@
 @php
     $avatarUrl = Auth::check() && Auth::user()->avatar
         ? Auth::user()->avatar
-        : (Auth::check() && Auth::user()->name
-            ? 'https://api.dicebear.com/7.x/notionists/svg?seed=' . urlencode(Auth::user()->name) . '&backgroundColor=e2e8f0'
-            : asset('images/avatar.png'));
+        : asset('images/avatar.png');
 
     $deptName = 'Product Team';
     if (Auth::check()) {
diff --git a/resources/views/user/partials/ranking_list.blade.php b/resources/views/user/partials/ranking_list.blade.php
index dd08df9..1e6e364 100644
--- a/resources/views/user/partials/ranking_list.blade.php
+++ b/resources/views/user/partials/ranking_list.blade.php
@@ -15,7 +15,7 @@
                     rank="{{ $item->rank }}" 
                     name="{{ $item->name }}" 
                     team="{{ $teamName }}" 
-                    avatar="{{ $item->avatar ?? 'https://api.dicebear.com/7.x/notionists/svg?seed=' . urlencode($item->name) . '&backgroundColor=bfdbfe' }}" 
+                    avatar="{{ $item->avatar ? $item->avatar : asset('images/avatar.png') }}" 
                     score="{{ $item->score }}" 
                     unit="thẻ" 
                     :isCurrent="$item->msnv == Auth::user()->msnv" 
@@ -45,7 +45,7 @@
                 rank="{{ $currentUserRankItem->rank > 0 ? $currentUserRankItem->rank : '-' }}" 
                 name="{{ $currentUserRankItem->name }}" 
                 team="{{ $currTeamName }}" 
-                avatar="{{ $currentUserRankItem->avatar ?? 'https://api.dicebear.com/7.x/notionists/svg?seed=' . urlencode($currentUserRankItem->name) . '&backgroundColor=bfdbfe' }}" 
+                avatar="{{ $currentUserRankItem->avatar ? $currentUserRankItem->avatar : asset('images/avatar.png') }}" 
                 score="{{ $currentUserRankItem->score }}" 
                 unit="thẻ" 
                 :isCurrent="true"