diff --git a/next.config.ts b/next.config.ts
index e9ffa308..5e9d4894 100644
--- a/next.config.ts
+++ b/next.config.ts
@@ -1,7 +1,44 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  /* config options here */
+  async headers() {
+    return [
+      {
+        source: "/(.*)",
+        headers: [
+          {
+            key: "Content-Security-Policy",
+            value: [
+              "default-src 'self'",
+              "script-src 'self' 'unsafe-eval' 'unsafe-inline'",
+              "style-src 'self' 'unsafe-inline' https://fonts.googleapis.com",
+              "img-src 'self' data: blob: https:",
+              "font-src 'self' data: https://fonts.googleapis.com https://fonts.gstatic.com",
+              [
+                "connect-src 'self'",
+                // WalletConnect
+                "https://*.walletconnect.com wss://*.walletconnect.com https://*.walletconnect.org wss://*.walletconnect.org https://api.web3modal.com https://pulse.walletconnect.org",
+                // RPC providers
+                "https://mainnet.base.org https://sepolia.base.org https://base-rpc.publicnode.com https://base.drpc.org https://base.llamarpc.com https://base.meowrpc.com https://base-mainnet.public.blastapi.io https://1rpc.io https://base.gateway.tenderly.co https://rpc.notadegen.com https://base.blockpi.network https://developer-access-mainnet.base.org https://base.api.onfinality.io",
+                // Supabase
+                "https://*.supabase.co",
+                // Farcaster & social
+                "https://api.neynar.com https://fc.hunt.town https://*.farcaster.xyz",
+                // Price & reputation
+                "https://api.coingecko.com https://api.geckoterminal.com https://api.quotient.social https://api.twitterapi.io",
+                // IPFS & storage
+                "https://ipfs.filebase.io https://ipfs.io https://s3.filebase.com",
+                // Vercel analytics
+                "https://va.vercel-scripts.com",
+              ].join(" "),
+              "frame-src 'self' https://*.walletconnect.com https://*.farcaster.xyz",
+              "frame-ancestors 'self' https://*.farcaster.xyz https://*.warpcast.com https://base.org https://*.base.org",
+            ].join("; "),
+          },
+        ],
+      },
+    ];
+  },
 };
 
 export default nextConfig;