diff --git a/package-lock.json b/package-lock.json
index 3225cc0..4289cbb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,6 +24,7 @@
 				"pino": "^9.9.1",
 				"pino-http": "^10.5.0",
 				"pino-pretty": "^13.1.1",
+				"undici": "^7.16.0",
 				"xml-js": "^1.6.11",
 				"xmlbuilder": "^15.1.1"
 			},
@@ -9488,6 +9489,15 @@
 				"url": "https://github.com/sponsors/ljharb"
 			}
 		},
+		"node_modules/undici": {
+			"version": "7.16.0",
+			"resolved": "https://registry.npmjs.org/undici/-/undici-7.16.0.tgz",
+			"integrity": "sha512-QEg3HPMll0o3t2ourKwOeUAZ159Kn9mx5pnzHRQO8+Wixmh88YdZRiIwat0iNzNNXn0yoEtXJqFpyW7eM8BV7g==",
+			"license": "MIT",
+			"engines": {
+				"node": ">=20.18.1"
+			}
+		},
 		"node_modules/undici-types": {
 			"version": "6.20.0",
 			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.20.0.tgz",
@@ -16276,6 +16286,11 @@
 				"which-boxed-primitive": "^1.1.1"
 			}
 		},
+		"undici": {
+			"version": "7.16.0",
+			"resolved": "https://registry.npmjs.org/undici/-/undici-7.16.0.tgz",
+			"integrity": "sha512-QEg3HPMll0o3t2ourKwOeUAZ159Kn9mx5pnzHRQO8+Wixmh88YdZRiIwat0iNzNNXn0yoEtXJqFpyW7eM8BV7g=="
+		},
 		"undici-types": {
 			"version": "6.20.0",
 			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.20.0.tgz",
diff --git a/package.json b/package.json
index 33344d2..f95f07a 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
 		"pino": "^9.9.1",
 		"pino-http": "^10.5.0",
 		"pino-pretty": "^13.1.1",
+		"undici": "^7.16.0",
 		"xml-js": "^1.6.11",
 		"xmlbuilder": "^15.1.1"
 	},
diff --git a/src/cli/files.cmd.ts b/src/cli/files.cmd.ts
index 4c3131e..0dd73b7 100644
--- a/src/cli/files.cmd.ts
+++ b/src/cli/files.cmd.ts
@@ -1,6 +1,7 @@
 import fs from 'node:fs/promises';
 import { pipeline } from 'node:stream/promises';
 import { Readable } from 'node:stream';
+import { request } from 'undici';
 import { Command } from 'commander';
 import { decryptWiiU } from '@pretendonetwork/boss-crypto';
 import { getCliContext } from './utils';
@@ -76,18 +77,22 @@ const downloadCmd = new Command('download')
 		}
 
 		const npdi = ctx.getNpdiUrl();
-		const fetchResult = await fetch(`${npdi.url}/p01/data/1/${file.bossAppId}/${file.dataId}/${file.hash}`, {
+		const { body, statusCode } = await request(`${npdi.url}/p01/data/1/${file.bossAppId}/${file.dataId}/${file.hash}`, {
 			headers: {
 				Host: npdi.host
 			}
 		});
-		if (fetchResult.status > 299) {
-			console.error(`Failed to download: invalid status code (${fetchResult.status})`);
+		if (statusCode > 299) {
+			console.error(`Failed to download: invalid status code (${statusCode})`);
 			process.exit(1);
 		}
 
-		const arrayBuffer = await fetchResult.arrayBuffer();
-		let buffer = Buffer.from(arrayBuffer);
+		const chunks: Buffer[] = [];
+		for await (const chunk of body) {
+			chunks.push(Buffer.from(chunk));
+		}
+
+		let buffer: Buffer = Buffer.concat(chunks);
 
 		if (ops.decrypt) {
 			const keys = ctx.getWiiUKeys();