diff --git a/package.json b/package.json
index bba1e9f..dc734fb 100644
--- a/package.json
+++ b/package.json
@@ -3,8 +3,8 @@
   "version": "2.3.0",
   "description": "Client-side Bitcoin JavaScript library",
   "main": "./src/index.js",
-  "engines" : {
-    "node" : ">=0.12"
+  "engines": {
+    "node": ">=0.12"
   },
   "keywords": [
     "bitcoin",
@@ -64,13 +64,12 @@
     "wif": "^2.0.1"
   },
   "devDependencies": {
-    "async": "^1.5.0",
-    "browserify": "^10.0.0",
-    "bs58": "^2.0.1",
+    "async": "^2.0.1",
+    "bs58": "^3.0.0",
     "cb-http-client": "^0.2.0",
-    "httpify": "^1.0.0",
+    "httpify": "^3.0.0",
     "minimaldata": "^1.0.0",
-    "mocha": "^2.2.0",
+    "mocha": "^3.1.0",
     "nyc": "^8.1.0",
     "proxyquire": "^1.4.0",
     "sinon": "^1.12.2",
diff --git a/test/integration/advanced.js b/test/integration/advanced.js
index e90a104..49d3361 100644
--- a/test/integration/advanced.js
+++ b/test/integration/advanced.js
@@ -5,7 +5,7 @@ var blockchain = require('./_blockchain')
 
 describe('bitcoinjs-lib (advanced)', function () {
   it('can create an OP_RETURN transaction', function (done) {
-    this.timeout(20000)
+    this.timeout(30000)
 
     var network = bitcoin.networks.testnet
     var keyPair = bitcoin.ECPair.makeRandom({ network: network })
diff --git a/test/integration/crypto.js b/test/integration/crypto.js
index 0644129..84fc9ca 100644
--- a/test/integration/crypto.js
+++ b/test/integration/crypto.js
@@ -59,7 +59,7 @@ describe('bitcoinjs-lib (crypto)', function () {
   })
 
   it('can recover a private key from duplicate R values', function (done) {
-    this.timeout(10000)
+    this.timeout(30000)
 
     var inputs = [
       {