diff --git a/server/src/adsb.mjs b/server/src/adsb.mjs
index 13dd24e..0986944 100644
--- a/server/src/adsb.mjs
+++ b/server/src/adsb.mjs
@@ -1,12 +1,12 @@
 import {cfg} from './config.mjs';
 import Database from 'better-sqlite3';
 import {createWriteStream, existsSync, mkdirSync} from 'fs';
-import {readFile, rm} from 'fs/promises';
 import {resolve, dirname} from 'path';
 import {fileURLToPath} from 'url';
 import {pipeline} from 'stream/promises';
 import {createGunzip} from 'zlib';
 import AdmZip from 'adm-zip';
+import * as fs from 'node:fs';
 
 const DIR     = dirname(fileURLToPath(import.meta.url));
 const DATA    = resolve(DIR, '../data');
@@ -33,7 +33,7 @@ async function downloadTypes() {
 	const gunzip = createGunzip();
 	const chunks = [];
 	await new Promise((res, rej) => {
-		const gz = require('fs').createReadStream(TY_GZ);
+		const gz = fs.createReadStream(TY_GZ);
 		gz.pipe(gunzip);
 		gunzip.on('data', c => chunks.push(c));
 		gunzip.on('end', res);
@@ -105,10 +105,8 @@ export async function initAircraftDb() {
 	}
 
 	console.log('✈️  Downloading aircraft DB...');
-	const [, types] = await Promise.all([
-		importAircraftDb(),
-		downloadTypes().then(t => importTypes(t))
-	]);
+	await Promise.all([importAircraftDb(), downloadTypes().then(t => importTypes(t))]);
+	await Promise.all([fs.promises.rm(DB_ZIP), fs.promises.rm(TY_GZ),]);
 }
 
 const lookupAircraft = (icao) =>
@@ -133,7 +131,7 @@ export function enrichAircraft(a) {
 }
 
 export async function getShapes() {
-	return JSON.parse(await readFile(SHAPES_PATH, 'utf8'));
+	return JSON.parse(await fs.promises.readFile(SHAPES_PATH, 'utf8'));
 }
 
 export async function getADSB() {