diff --git a/packages/voice/__tests__/VoiceReceiver.test.ts b/packages/voice/__tests__/VoiceReceiver.test.ts
index 7410ce2b2..b885fad30 100644
--- a/packages/voice/__tests__/VoiceReceiver.test.ts
+++ b/packages/voice/__tests__/VoiceReceiver.test.ts
@@ -157,7 +157,7 @@ describe('VoiceReceiver', () => {
 			);
 
 			const expectedNonce = Buffer.concat([
-				XCHACHA20_SAMPLE.encrypted.slice(XCHACHA20_SAMPLE.encrypted.length - 4),
+				XCHACHA20_SAMPLE.encrypted.subarray(XCHACHA20_SAMPLE.encrypted.length - 4),
 				Buffer.alloc(20),
 			]);
 
diff --git a/packages/voice/src/networking/VoiceUDPSocket.ts b/packages/voice/src/networking/VoiceUDPSocket.ts
index 84bc40f17..e68de60b2 100644
--- a/packages/voice/src/networking/VoiceUDPSocket.ts
+++ b/packages/voice/src/networking/VoiceUDPSocket.ts
@@ -20,7 +20,7 @@ export interface SocketConfig {
 export function parseLocalPacket(message: Buffer): SocketConfig {
 	const packet = Buffer.from(message);
 
-	const ip = packet.slice(8, packet.indexOf(0, 8)).toString('utf8');
+	const ip = packet.subarray(8, packet.indexOf(0, 8)).toString('utf8');
 
 	if (!isIPv4(ip)) {
 		throw new Error('Malformed IP address');