diff --git a/index.js b/index.js
index c655385..98d7bb2 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,8 @@
 const Transaction = require('ethereumjs-tx')
 const ProviderEngine = require('web3-provider-engine')
 const RpcSubprovider = require('web3-provider-engine/subproviders/rpc.js')
-const HookedWalletSubprovider = require('web3-provider-engine/subproviders/hooked-wallet.js')
+const PkHookedWalletSubprovider = require('web3-provider-engine/subproviders/hooked-wallet-ethtx.js')
+const NonceSubprovider = require('web3-provider-engine/subproviders/nonce-tracker.js')
 
 module.exports = rpcWrapperEngine
 
@@ -14,52 +15,23 @@ function rpcWrapperEngine(opts){
   var privateKey = opts.privateKey
   var addresses = [opts.addressHex]
 
-  engine.addProvider(new HookedWalletSubprovider({
+  engine.addProvider(new PkHookedWalletSubprovider({
     getAccounts: function(cb){
       cb(null, addresses)
     },
-    signTransaction: function(txParams, cb){
-      try {
-        // console.log('signing tx:', txParams)
-        var tx = new Transaction({
-          nonce: txParams.nonce,
-          to: txParams.to,
-          value: txParams.value,
-          data: txParams.input,
-          gasPrice: txParams.gasPrice,
-          gasLimit: txParams.gas,
-        })
-        tx.sign(privateKey)
-        var serializedTx = '0x'+tx.serialize().toString('hex')
-
-        // deserialize and dump values to confirm configuration
-        var verifyTx = new Transaction(tx.serialize())
-        console.log('signed transaction:', {
-          to: '0x'+verifyTx.to.toString('hex'),
-          from: '0x'+verifyTx.from.toString('hex'),
-          nonce: '0x'+verifyTx.nonce.toString('hex'),
-          value: (ethUtil.bufferToInt(verifyTx.value)/1e18)+' ether',
-          data: '0x'+verifyTx.data.toString('hex'),
-          gasPrice: '0x'+verifyTx.gasPrice.toString('hex'),
-          gasLimit: '0x'+verifyTx.gasLimit.toString('hex'),
-        })
-        cb(null, serializedTx)
-      } catch (err) {
-        cb(err)
-      }
+    getPrivateKey: function(from, cb){
+      cb(null, privateKey)
     },
   }))
+  
+  // pending nonce
+  engine.addProvider(new NonceSubprovider())
 
   // data source
   engine.addProvider(new RpcSubprovider({
     rpcUrl: opts.rpcUrl,
   }))
 
-  // log new blocks
-  // engine.on('block', function(block){
-  //   console.log('BLOCK CHANGED:', '#'+block.number.toString('hex'), '0x'+block.hash.toString('hex'))
-  // })
-
   // start polling
   engine.start()
 
diff --git a/package.json b/package.json
index 734e76e..f7cbe6d 100644
--- a/package.json
+++ b/package.json
@@ -5,16 +5,16 @@
   "description": "",
   "main": "index.js",
   "dependencies": {
-    "body-parser": "^1.14.1",
+    "body-parser": "^1.15.0",
     "browserify": "^13.0.0",
     "cors": "^2.7.1",
-    "ethereumjs-tx": "^0.7.1",
+    "ethereumjs-tx": "^0.7.3",
     "ethereumjs-util": "^2.6.0",
-    "express": "^4.13.3",
+    "express": "^4.13.4",
     "h": "^0.1.0",
-    "request": "^2.66.0",
-    "web3": "^0.15.1",
-    "web3-provider-engine": "^3.3.0",
+    "request": "^2.69.0",
+    "web3": "^0.15.3",
+    "web3-provider-engine": "^7.0.0",
     "xtend": "^4.0.1"
   },
   "devDependencies": {},