diff --git a/api/blog/index.ts b/api/blog/index.ts
index 6761da0b..c0a0880e 100644
--- a/api/blog/index.ts
+++ b/api/blog/index.ts
@@ -1,4 +1,5 @@
 import { createClient } from "@supabase/supabase-js";
+import type { VercelRequest, VercelResponse } from "@vercel/node";
 
 const supabaseUrl = process.env.SUPABASE_URL || "";
 const supabaseServiceRole = process.env.SUPABASE_SERVICE_ROLE || "";
@@ -115,13 +116,15 @@ async function fetchFromSupabase(limit: number = 50): Promise<any[]> {
   }
 }
 
-export default async function handler(req: any, res: any) {
+export default async function handler(req: VercelRequest, res: VercelResponse) {
+  res.setHeader("Content-Type", "application/json");
+
   if (req.method !== "GET") {
     return res.status(405).json({ error: "Method not allowed" });
   }
 
   try {
-    const limit = Math.min(parseInt(req.query.limit as string) || 50, 100);
+    const limit = Math.min(parseInt((req.query.limit as string) || "50"), 100);
 
     // Try Ghost first, then Supabase
     let posts = await fetchFromGhost(limit);