diff --git a/package.json b/package.json
index cc07c9f..765495d 100644
--- a/package.json
+++ b/package.json
@@ -75,6 +75,7 @@
     "bigi": "1.1.0",
     "bs58": "1.1.0",
     "bs58check": "1.0.0",
+    "crypto-browserify": "3.0.0",
     "crypto-js": "3.1.2-3",
     "crypto-browserify": "2.1.8",
     "ecurve": "0.10.0",
diff --git a/src/eckey.js b/src/eckey.js
index 87a9367..a3073ec 100644
--- a/src/eckey.js
+++ b/src/eckey.js
@@ -1,8 +1,8 @@
 var assert = require('assert')
 var base58check = require('bs58check')
+var crypto = require('crypto')
 var ecdsa = require('./ecdsa')
 var networks = require('./networks')
-var secureRandom = require('secure-random')
 
 var BigInteger = require('bigi')
 var ECPubKey = require('./ecpubkey')
@@ -43,7 +43,7 @@ ECKey.fromWIF = function(string) {
 }
 
 ECKey.makeRandom = function(compressed, rng) {
-  rng = rng || secureRandom.randomBuffer
+  rng = rng || crypto.randomBytes
 
   var buffer = rng(32)
   assert(Buffer.isBuffer(buffer), 'Expected Buffer, got ' + buffer)
diff --git a/src/wallet.js b/src/wallet.js
index da14080..c056c95 100644
--- a/src/wallet.js
+++ b/src/wallet.js
@@ -1,6 +1,6 @@
 var assert = require('assert')
+var crypto = require('crypto')
 var networks = require('./networks')
-var rng = require('secure-random')
 
 var Address = require('./address')
 var HDNode = require('./hdnode')
@@ -25,7 +25,7 @@ function Wallet(seed, network) {
 
   // Make a new master key
   this.newMasterKey = function(seed) {
-    seed = seed || new Buffer(rng(32))
+    seed = seed || crypto.randomBytes(32)
     masterkey = HDNode.fromSeedBuffer(seed, network)
 
     // HD first-level child derivation method should be hardened
diff --git a/test/eckey.js b/test/eckey.js
index 7694a1b..a5ce620 100644
--- a/test/eckey.js
+++ b/test/eckey.js
@@ -1,8 +1,7 @@
 var assert = require('assert')
-var crypto = require('../src/crypto')
+var crypto = require('crypto')
+var crypto2 = require('../src/crypto')
 var networks = require('../src/networks')
-
-var secureRandom = require('secure-random')
 var sinon = require('sinon')
 
 var BigInteger = require('bigi')
@@ -84,13 +83,13 @@ describe('ECKey', function() {
     var exPrivKey = ECKey.fromWIF(exWIF)
     var exBuffer = exPrivKey.d.toBuffer(32)
 
-    describe('using default RNG', function() {
+    describe('uses default crypto RNG', function() {
       beforeEach(function() {
-        sinon.stub(secureRandom, 'randomBuffer').returns(exBuffer)
+        sinon.stub(crypto, 'randomBytes').returns(exBuffer)
       })
 
       afterEach(function() {
-        secureRandom.randomBuffer.restore()
+        crypto.randomBytes.restore()
       })
 
       it('generates a ECKey', function() {
@@ -116,7 +115,7 @@ describe('ECKey', function() {
   })
 
   describe('signing', function() {
-    var hash = crypto.sha256('Vires in numeris')
+    var hash = crypto2.sha256('Vires in numeris')
     var priv = ECKey.makeRandom()
     var signature = priv.sign(hash)