diff --git a/lib/cmds/blockchain/blockchain.js b/lib/cmds/blockchain/blockchain.js
index 1e01893e..1b7e16d9 100644
--- a/lib/cmds/blockchain/blockchain.js
+++ b/lib/cmds/blockchain/blockchain.js
@@ -23,7 +23,7 @@ var Blockchain = function(options) {
     rpcHost: this.blockchainConfig.rpcHost || 'localhost',
     rpcPort: this.blockchainConfig.rpcPort || 8545,
     rpcCorsDomain: this.blockchainConfig.rpcCorsDomain || false,
-    networkId: this.blockchainConfig.networkId || 12301,
+    networkId: this.blockchainConfig.networkId || 1337,
     port: this.blockchainConfig.port || 30303,
     nodiscover: this.blockchainConfig.nodiscover || false,
     mine: this.blockchainConfig.mine || false,
diff --git a/lib/contracts/code_templates/utils.js.ejs b/lib/contracts/code_templates/utils.js.ejs
index b88c7b37..25bb65fd 100644
--- a/lib/contracts/code_templates/utils.js.ejs
+++ b/lib/contracts/code_templates/utils.js.ejs
@@ -34,3 +34,20 @@ function __reduce(arr, memo, iteratee, cb) {
     });
   })(0, memo);
 };
+
+function __isNewWeb3_1() {
+  return (typeof(web3.version) === "string");
+};
+
+function __getAccounts(cb) {
+  if (__isNewWeb3_1()) {
+    web3.eth.getAccounts().then(function(accounts) {
+      cb(null, accounts);
+    }).catch(function(err) {
+      cb(err);
+    });
+    return;
+  }
+  web3.eth.getAccounts(cb);
+};
+
diff --git a/lib/contracts/code_templates/web3-connector.js.ejs b/lib/contracts/code_templates/web3-connector.js.ejs
index 4e61fb0f..be3e3351 100644
--- a/lib/contracts/code_templates/web3-connector.js.ejs
+++ b/lib/contracts/code_templates/web3-connector.js.ejs
@@ -16,7 +16,7 @@ __reduce(<%- connectionList %>,function(prev, value, next) {
     return next(null, '');
   }
 
-  web3.eth.getAccounts(function(err, account) {
+  __getAccounts(function(err, account) {
     if (err) {
       next(null, true)
     } else {
@@ -24,7 +24,7 @@ __reduce(<%- connectionList %>,function(prev, value, next) {
     }
   });
 }, function(err, _result) {
-  web3.eth.getAccounts(function(err, accounts) {
+  __getAccounts(function(err, accounts) {
     web3.eth.defaultAccount = accounts[0];
     <%- done  %>
   });
diff --git a/templates/boilerplate/config/blockchain.json b/templates/boilerplate/config/blockchain.json
index a7f31878..b72f107a 100644
--- a/templates/boilerplate/config/blockchain.json
+++ b/templates/boilerplate/config/blockchain.json
@@ -2,9 +2,10 @@
   "development": {
     "enabled": true,
     "networkType": "custom",
+    "networkId": "1337",
+    "isDev": true,
     "genesisBlock": "config/development/genesis.json",
     "datadir": ".embark/development/datadir",
-    "isDev": true,
     "mineWhenNeeded": true,
     "nodiscover": true,
     "maxpeers": 0,
diff --git a/templates/demo/config/blockchain.json b/templates/demo/config/blockchain.json
index 5743c38d..8e299188 100644
--- a/templates/demo/config/blockchain.json
+++ b/templates/demo/config/blockchain.json
@@ -2,9 +2,10 @@
   "development": {
     "enabled": true,
     "networkType": "custom",
+    "networkId": "1337",
+    "isDev": true,
     "genesisBlock": "config/development/genesis.json",
     "datadir": ".embark/development/datadir",
-    "isDev": true,
     "mineWhenNeeded": true,
     "nodiscover": true,
     "maxpeers": 0,
diff --git a/test/code_generator.js b/test/code_generator.js
index fa2181b0..d5f5cdcf 100644
--- a/test/code_generator.js
+++ b/test/code_generator.js
@@ -14,7 +14,7 @@ describe('embark.CodeGenerator', function() {
     let generator = new CodeGenerator({contractsConfig: {"dappConnection": [ "$WEB3", "http://somehost:1234" ] }, contractsManager: {}});
 
     it('should generate code to connect to a provider', function() {
-      var providerCode = 'function __reduce(arr, memo, iteratee, cb) {\n  if (typeof cb !== \'function\') {\n    if (typeof memo === \'function\' && typeof iteratee === \'function\') {\n      cb = iteratee;\n      iteratee = memo;\n      memo = [];\n    } else {\n      throw new TypeError(\'expected callback to be a function\');\n    }\n  }\n\n  if (!Array.isArray(arr)) {\n    cb(new TypeError(\'expected an array\'));\n    return;\n  }\n\n  if (typeof iteratee !== \'function\') {\n    cb(new TypeError(\'expected iteratee to be a function\'));\n    return;\n  }\n\n  (function next(i, acc) {\n    if (i === arr.length) {\n      cb(null, acc);\n      return;\n    }\n\n    iteratee(acc, arr[i], function(err, val) {\n      if (err) {\n        cb(err);\n        return;\n      }\n      next(i + 1, val);\n    });\n  })(0, memo);\n};\nvar __mainContext = __mainContext || this;\n__mainContext.__LoadManager = function() { this.list = []; this.done = false; }\n__mainContext.__LoadManager.prototype.execWhenReady = function(cb) { if (this.done) { cb(); } else { this.list.push(cb) } }\n__mainContext.__LoadManager.prototype.doFirst = function(todo) { var self = this; todo(function() { self.done = true; self.list.map((x) => x.apply()) }) }\n__mainContext.__loadManagerInstance = new __mainContext.__LoadManager();\nvar whenEnvIsLoaded = function(cb) {\n  if (typeof document !== \'undefined\' && document !== null && !/comp|inter|loaded/.test(document.readyState)) {\n      document.addEventListener(\'DOMContentLoaded\', cb);\n  } else {\n    cb();\n  }\n}\nwhenEnvIsLoaded(function(){\n  __mainContext.__loadManagerInstance.doFirst(function(done) {\n    __mainContext.web3 = undefined;\n__reduce(["$WEB3","http://somehost:1234"],function(prev, value, next) {\n  if (prev === false) {\n    return next(null, false);\n  }\n\n  if (value === \'$WEB3\' && (typeof web3 !== \'undefined\' && typeof Web3 !== \'undefined\')) {\n    web3.setProvider(web3.givenProvider);\n  } else if (value !== \'$WEB3\' && (typeof Web3 !== \'undefined\' && ((typeof web3 === \'undefined\') || (typeof web3 !== \'undefined\' && (!web3.isConnected || (web3.isConnected && !web3.isConnected())))))) {\n    if (value.indexOf(\'ws://\') >= 0) {\n      web3.setProvider(new Web3.providers.WebsocketProvider(value));\n    } else {\n      web3.setProvider(new Web3.providers.HttpProvider(value));\n    }\n  } else if (value === \'$WEB3\') {\n    return next(null, \'\');\n  }\n\n  web3.eth.getAccounts(function(err, account) {\n    if (err) {\n      next(null, true)\n    } else {\n      next(null, false)\n    }\n  });\n}, function(err, _result) {\n  web3.eth.getAccounts(function(err, accounts) {\n    web3.eth.defaultAccount = accounts[0];\n    done();\n  });\n});\n\n  })\n});\n\n';
+      var providerCode = 'function __reduce(arr, memo, iteratee, cb) {\n  if (typeof cb !== \'function\') {\n    if (typeof memo === \'function\' && typeof iteratee === \'function\') {\n      cb = iteratee;\n      iteratee = memo;\n      memo = [];\n    } else {\n      throw new TypeError(\'expected callback to be a function\');\n    }\n  }\n\n  if (!Array.isArray(arr)) {\n    cb(new TypeError(\'expected an array\'));\n    return;\n  }\n\n  if (typeof iteratee !== \'function\') {\n    cb(new TypeError(\'expected iteratee to be a function\'));\n    return;\n  }\n\n  (function next(i, acc) {\n    if (i === arr.length) {\n      cb(null, acc);\n      return;\n    }\n\n    iteratee(acc, arr[i], function(err, val) {\n      if (err) {\n        cb(err);\n        return;\n      }\n      next(i + 1, val);\n    });\n  })(0, memo);\n};\n\nfunction __isNewWeb3_1() {\n  return (typeof(web3.version) === \"string\");\n};\n\nfunction __getAccounts(cb) {\n  if (__isNewWeb3_1()) {\n    web3.eth.getAccounts().then(function(accounts) {\n      cb(null, accounts);\n    }).catch(function(err) {\n      cb(err);\n    });\n    return;\n  }\n  web3.eth.getAccounts(cb);\n};\n\nvar __mainContext = __mainContext || this;\n__mainContext.__LoadManager = function() { this.list = []; this.done = false; }\n__mainContext.__LoadManager.prototype.execWhenReady = function(cb) { if (this.done) { cb(); } else { this.list.push(cb) } }\n__mainContext.__LoadManager.prototype.doFirst = function(todo) { var self = this; todo(function() { self.done = true; self.list.map((x) => x.apply()) }) }\n__mainContext.__loadManagerInstance = new __mainContext.__LoadManager();\nvar whenEnvIsLoaded = function(cb) {\n  if (typeof document !== \'undefined\' && document !== null && !/comp|inter|loaded/.test(document.readyState)) {\n      document.addEventListener(\'DOMContentLoaded\', cb);\n  } else {\n    cb();\n  }\n}\nwhenEnvIsLoaded(function(){\n  __mainContext.__loadManagerInstance.doFirst(function(done) {\n    __mainContext.web3 = undefined;\n__reduce([\"$WEB3\",\"http://somehost:1234\"],function(prev, value, next) {\n  if (prev === false) {\n    return next(null, false);\n  }\n\n  if (value === \'$WEB3\' && (typeof web3 !== \'undefined\' && typeof Web3 !== \'undefined\')) {\n    web3.setProvider(web3.givenProvider);\n  } else if (value !== \'$WEB3\' && (typeof Web3 !== \'undefined\' && ((typeof web3 === \'undefined\') || (typeof web3 !== \'undefined\' && (!web3.isConnected || (web3.isConnected && !web3.isConnected())))))) {\n    if (value.indexOf(\'ws://\') >= 0) {\n      web3.setProvider(new Web3.providers.WebsocketProvider(value));\n    } else {\n      web3.setProvider(new Web3.providers.HttpProvider(value));\n    }\n  } else if (value === \'$WEB3\') {\n    return next(null, \'\');\n  }\n\n  __getAccounts(function(err, account) {\n    if (err) {\n      next(null, true)\n    } else {\n      next(null, false)\n    }\n  });\n}, function(err, _result) {\n  __getAccounts(function(err, accounts) {\n    web3.eth.defaultAccount = accounts[0];\n    done();\n  });\n});\n\n  })\n});\n\n'
 
       assert.strictEqual(replaceCRLF(generator.generateProvider()), providerCode);
     });
diff --git a/test_apps/contracts_app/blockchain.json b/test_apps/contracts_app/blockchain.json
index a574d400..ee5b1b96 100644
--- a/test_apps/contracts_app/blockchain.json
+++ b/test_apps/contracts_app/blockchain.json
@@ -2,9 +2,10 @@
   "development": {
     "enabled": true,
     "networkType": "custom",
+    "networkId": "1337",
+    "isDev": true,
     "genesisBlock": "development/genesis.json",
     "datadir": ".embark/development/datadir",
-    "isDev": true,
     "mineWhenNeeded": true,
     "nodiscover": true,
     "maxpeers": 0,
diff --git a/test_apps/test_app/config/blockchain.json b/test_apps/test_app/config/blockchain.json
index 2b9baa50..d86d2c76 100644
--- a/test_apps/test_app/config/blockchain.json
+++ b/test_apps/test_app/config/blockchain.json
@@ -2,9 +2,10 @@
   "development": {
     "enabled": true,
     "networkType": "custom",
+    "networkId": "1337",
+    "isDev": true,
     "genesisBlock": "config/development/genesis.json",
     "datadir": ".embark/development/datadir",
-    "isDev": true,
     "mineWhenNeeded": true,
     "nodiscover": true,
     "maxpeers": 0,