diff --git a/frontend/web/src/admin/AdminApp.tsx b/frontend/web/src/admin/AdminApp.tsx
index 4442512..32353d4 100644
--- a/frontend/web/src/admin/AdminApp.tsx
+++ b/frontend/web/src/admin/AdminApp.tsx
@@ -136,7 +136,7 @@ function AdminTopBar({ section, onMenu }: { section: AdminSectionId; onMenu?: ()
         </button>
       ) : null}
       <div className="flex min-w-0 items-center gap-2">
-        <img src="/icon.svg" alt="Cyrene" className="h-7 w-7 shrink-0" />
+        <img src="/images/Cyrene_Avatar/2nd_Form/Cyrene-2F-N-Happy-1-192x192.png" alt="Cyrene" className="h-7 w-7 shrink-0 rounded-full object-cover" />
         <div className="min-w-0 leading-tight">
           <div className="truncate whitespace-nowrap text-sm font-semibold">Cyrene · 管理面板</div>
           <div className="truncate whitespace-nowrap text-[11px] text-[var(--mu-text-lo)]">{meta?.label ?? "仪表盘"}</div>
diff --git a/frontend/web/src/components/Nav.tsx b/frontend/web/src/components/Nav.tsx
index 38b7298..7f027e9 100644
--- a/frontend/web/src/components/Nav.tsx
+++ b/frontend/web/src/components/Nav.tsx
@@ -68,7 +68,7 @@ function NavContent({ onNavigate }: { onNavigate: () => void }): React.ReactNode
   return (
     <>
       <div className="flex items-center gap-2 px-2 py-2">
-        <img src="/icon.svg" alt="Cyrene" className="h-7 w-7" />
+        <img src="/images/Cyrene_Avatar/2nd_Form/Cyrene-2F-N-Happy-1-192x192.png" alt="Cyrene" className="h-7 w-7 rounded-full object-cover" />
         <div className="leading-tight">
           <div className="text-sm font-semibold">Cyrene</div>
           <div className="text-[11px] text-[var(--mu-text-lo)]">昔涟</div>