diff --git a/config.js b/config.js
index d529fe5a..695214e9 100644
--- a/config.js
+++ b/config.js
@@ -1,5 +1,5 @@
 var fs  = require('fs')
-  , sys = require('sys')
+  , util = require('util')
 
 var Configurator = function (file) {
 
@@ -8,7 +8,7 @@ var Configurator = function (file) {
   var oldConfig = {};
 
   this.updateConfig = function () {
-    sys.log('reading config file: ' + file);
+    util.log('reading config file: ' + file);
 
     fs.readFile(file, function (err, data) {
       if (err) { throw err; }
@@ -26,7 +26,7 @@ var Configurator = function (file) {
   });
 };
 
-sys.inherits(Configurator, process.EventEmitter);
+util.inherits(Configurator, process.EventEmitter);
 
 exports.Configurator = Configurator;
 
diff --git a/stats.js b/stats.js
index 09b84038..df28f2f6 100644
--- a/stats.js
+++ b/stats.js
@@ -1,5 +1,5 @@
 var dgram  = require('dgram')
-  , sys    = require('sys')
+  , util    = require('util')
   , net    = require('net')
   , config = require('./config')
 
@@ -28,13 +28,13 @@ config.configFile(process.argv[2], function (config, oldConfig) {
   if (config.debug) {
     if (debugInt !== undefined) { clearInterval(debugInt); }
     debugInt = setInterval(function () { 
-      sys.log("Counters:\n" + sys.inspect(counters) + "\nTimers:\n" + sys.inspect(timers));
+      util.log("Counters:\n" + util.inspect(counters) + "\nTimers:\n" + util.inspect(timers));
     }, config.debugInterval || 10000);
   }
 
   if (server === undefined) {
     server = dgram.createSocket('udp4', function (msg, rinfo) {
-      if (config.dumpMessages) { sys.log(msg.toString()); }
+      if (config.dumpMessages) { util.log(msg.toString()); }
       var bits = msg.toString().split(':');
       var key = bits.shift()
                     .replace(/\s+/g, '_')
@@ -49,7 +49,7 @@ config.configFile(process.argv[2], function (config, oldConfig) {
         var sampleRate = 1;
         var fields = bits[i].split("|");
         if (fields[1] === undefined) {
-            sys.log('Bad line: ' + fields);
+            util.log('Bad line: ' + fields);
             stats['messages']['bad_lines_seen']++;
             continue;
         }
@@ -107,12 +107,12 @@ config.configFile(process.argv[2], function (config, oldConfig) {
             break;
 
           case "counters":
-            stream.write(sys.inspect(counters) + "\n");
+            stream.write(util.inspect(counters) + "\n");
             stream.write("END\n\n");
             break;
 
           case "timers":
-            stream.write(sys.inspect(timers) + "\n");
+            stream.write(util.inspect(timers) + "\n");
             stream.write("END\n\n");
             break;
 
@@ -131,7 +131,7 @@ config.configFile(process.argv[2], function (config, oldConfig) {
     server.bind(config.port || 8125);
     mgmtServer.listen(config.mgmt_port || 8126);
 
-    sys.log("server is up");
+    util.log("server is up");
 
     var flushInterval = Number(config.flushInterval || 10000);
 
@@ -198,7 +198,7 @@ config.configFile(process.argv[2], function (config, oldConfig) {
           var graphite = net.createConnection(config.graphitePort, config.graphiteHost);
           graphite.addListener('error', function(connectionException){
             if (config.debug) {
-              sys.log(connectionException);
+              util.log(connectionException);
             }
           });
           graphite.on('connect', function() {
@@ -208,7 +208,7 @@ config.configFile(process.argv[2], function (config, oldConfig) {
           });
         } catch(e){
           if (config.debug) {
-            sys.log(e);
+            util.log(e);
           }
           stats['graphite']['last_exception'] = Math.round(new Date().getTime() / 1000);
         }
diff --git a/test/graphite_tests.js b/test/graphite_tests.js
index 5dc42f95..9df714d5 100644
--- a/test/graphite_tests.js
+++ b/test/graphite_tests.js
@@ -2,7 +2,7 @@ var fs           = require('fs'),
     net          = require('net'),
     temp         = require('temp'),
     spawn        = require('child_process').spawn,
-    sys          = require('sys'),
+    util          = require('util'),
     urlparse     = require('url').parse,
     _            = require('underscore'),
     dgram        = require('dgram'),