diff --git a/js/models/core/Wallet.js b/js/models/core/Wallet.js
index 395f952d3..efba503dc 100644
--- a/js/models/core/Wallet.js
+++ b/js/models/core/Wallet.js
@@ -318,7 +318,7 @@ Wallet.prototype._onAddressBook = function(senderId, data, isInbound) {
 
 
 Wallet.prototype.updateTimestamp = function() {
-  this.lastTimestamp = microtime.now();
+  this.lastTimestamp = new Date().getTime() * 1000;
 };
 
 Wallet.prototype._onData = function(senderId, data, isInbound) {
diff --git a/package.json b/package.json
index fe84e9ba1..d68f10f9f 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,6 @@
   },
   "version": "0.4.7",
   "dependencies": {
-    "microtime": "^1.0.1",
     "mocha": "^1.18.2",
     "mocha-lcov-reporter": "0.0.1",
     "optimist": "^0.6.1",