diff --git a/components/post/TableOfContents.tsx b/components/post/TableOfContents.tsx
index edc78b3..e2f51fd 100644
--- a/components/post/TableOfContents.tsx
+++ b/components/post/TableOfContents.tsx
@@ -38,7 +38,7 @@ export function TableOfContents({ items }: { items: TocItem[] }) {
   if (items.length === 0) return null
 
   return (
-    <aside className="hidden lg:block w-80 xl:w-100">
+    <aside className="hidden lg:block w-80 2xl:w-100">
       <nav aria-label="Table of contents" className="sticky top-20">
         <h2 className="text-2xl font-bold mb-4">Table of Contents</h2>
         <ul className="space-y-1 text-sm">