diff --git a/src/ssn/decryption/decryptChunk.ts b/src/ssn/decryption/decryptChunk.ts
index b41ca26..7113ad6 100644
--- a/src/ssn/decryption/decryptChunk.ts
+++ b/src/ssn/decryption/decryptChunk.ts
@@ -3,7 +3,7 @@ import updateKeys from './lib/updateKeys';
 export default function decryptChunk(encryptedChunk: Buffer, [key0, key1, key2]: [number, number, number]): Buffer {
   const dv = new DataView(encryptedChunk.buffer);
 
-  const decryptedChunk = new Buffer(encryptedChunk.length);
+  const decryptedChunk = Buffer.alloc(encryptedChunk.length);
   const dvOut = new DataView(decryptedChunk.buffer);
 
   for (let i = 0; i < encryptedChunk.length; i += 1) {