diff --git a/package.json b/package.json
index 8fac21d..91b21ec 100644
--- a/package.json
+++ b/package.json
@@ -44,12 +44,12 @@
   },
   "homepage": "https://github.com/ethereumjs/ethereumjs-wallet",
   "dependencies": {
+    "@web3-js/scrypt-shim": "^0.1.0",
     "aes-js": "^3.1.1",
     "bs58check": "^2.1.2",
     "ethereumjs-util": "^6.0.0",
     "hdkey": "^1.1.1",
     "randombytes": "^2.0.6",
-    "scrypt.js": "^0.3.0",
     "utf8": "^3.0.0",
     "uuid": "^3.3.2"
   },
diff --git a/src/index.ts b/src/index.ts
index 8845f61..9a7d66f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -3,7 +3,7 @@ import * as ethUtil from 'ethereumjs-util'
 
 const bs58check = require('bs58check')
 const randomBytes = require('randombytes')
-const scryptsy = require('scrypt.js')
+const scrypt = require('@web3-js/scrypt-shim')
 const uuidv4 = require('uuid/v4')
 
 // parameters for the toV3() method
@@ -313,7 +313,7 @@ export default class Wallet {
     }
 
     const kdfparams = json.Crypto.KeyHeader.KdfParams
-    const derivedKey = scryptsy(
+    const derivedKey = scrypt(
       Buffer.from(password),
       Buffer.from(json.Crypto.Salt, 'hex'),
       kdfparams.N,
@@ -354,7 +354,7 @@ export default class Wallet {
       kdfparams = json.crypto.kdfparams
 
       // FIXME: support progress reporting callback
-      derivedKey = scryptsy(
+      derivedKey = scrypt(
         Buffer.from(password),
         Buffer.from(kdfparams.salt, 'hex'),
         kdfparams.n,
@@ -491,7 +491,7 @@ export default class Wallet {
       case KDFFunctions.Scrypt:
         kdfParams = kdfParamsForScrypt(v3Params)
         // FIXME: support progress reporting callback
-        derivedKey = scryptsy(
+        derivedKey = scrypt(
           Buffer.from(password),
           kdfParams.salt,
           kdfParams.n,
diff --git a/src/thirdparty.ts b/src/thirdparty.ts
index bbb2179..3aade8a 100644
--- a/src/thirdparty.ts
+++ b/src/thirdparty.ts
@@ -3,7 +3,7 @@ import * as ethUtil from 'ethereumjs-util'
 
 import Wallet from './index'
 
-const scryptsy = require('scrypt.js')
+const scrypt = require('@web3-js/scrypt-shim')
 const utf8 = require('utf8')
 const aesjs = require('aes-js')
 
@@ -213,7 +213,7 @@ function fromKryptoKit(entropy: string, password: string): Wallet {
     const checksum = entropy.slice(30, 46)
 
     const salt = kryptoKitBrokenScryptSeed(encryptedSeed)
-    const aesKey = scryptsy(Buffer.from(password, 'utf8'), salt, 16384, 8, 1, 32)
+    const aesKey = scrypt(Buffer.from(password, 'utf8'), salt, 16384, 8, 1, 32)
 
     /* FIXME: try to use `crypto` instead of `aesjs`