diff --git a/lib/client/udp-tracker.js b/lib/client/udp-tracker.js
index 665fc8b..b9ccbb2 100644
--- a/lib/client/udp-tracker.js
+++ b/lib/client/udp-tracker.js
@@ -5,8 +5,8 @@ var Buffer = require('safe-buffer').Buffer
 var compact2string = require('compact2string')
 var debug = require('debug')('bittorrent-tracker:udp-tracker')
 var dgram = require('dgram')
-var hat = require('hat')
 var inherits = require('inherits')
+var randombytes = require('randombytes')
 var url = require('url')
 
 var common = require('../common')
@@ -224,7 +224,7 @@ UDPTracker.prototype._request = function (opts) {
 }
 
 function genTransactionId () {
-  return Buffer.from(hat(32), 'hex')
+  return randombytes(4)
 }
 
 function toUInt16 (n) {
diff --git a/lib/client/websocket-tracker.js b/lib/client/websocket-tracker.js
index c1095b8..b0aa6b5 100644
--- a/lib/client/websocket-tracker.js
+++ b/lib/client/websocket-tracker.js
@@ -2,9 +2,9 @@ module.exports = WebSocketTracker
 
 var debug = require('debug')('bittorrent-tracker:websocket-tracker')
 var extend = require('xtend')
-var hat = require('hat')
 var inherits = require('inherits')
 var Peer = require('simple-peer')
+var randombytes = require('randombytes')
 var Socket = require('simple-websocket')
 
 var common = require('../common')
@@ -369,7 +369,7 @@ WebSocketTracker.prototype._generateOffers = function (numwant, cb) {
   checkDone()
 
   function generateOffer () {
-    var offerId = hat(160)
+    var offerId = randombytes(20).toString('hex')
     debug('creating peer (from _generateOffers)')
     var peer = self.peers[offerId] = new Peer({
       initiator: true,
diff --git a/package.json b/package.json
index 54b7b00..d8059fb 100644
--- a/package.json
+++ b/package.json
@@ -25,13 +25,13 @@
     "bn.js": "^4.4.0",
     "compact2string": "^1.2.0",
     "debug": "^2.0.0",
-    "hat": "0.0.3",
     "inherits": "^2.0.1",
     "ip": "^1.0.1",
     "lru": "^3.0.0",
     "minimist": "^1.1.1",
     "once": "^1.3.0",
     "random-iterate": "^1.0.1",
+    "randombytes": "^2.0.3",
     "run-parallel": "^1.1.2",
     "run-series": "^1.0.2",
     "safe-buffer": "^5.0.0",