diff --git a/lib/vows.js b/lib/vows.js
index 44e5cf2..e5fe6e2 100644
--- a/lib/vows.js
+++ b/lib/vows.js
@@ -15,7 +15,7 @@
 //           }
 //       }).run();
 //
-var sys = require('sys'),
+var util = require('util'),
     path = require('path'),
     events = require('events'),
     vows = exports;
@@ -141,7 +141,7 @@ process.on('exit', function () {
                 }
             });
 
-            if (unFired.length > 0) { sys.print('\n') }
+            if (unFired.length > 0) { util.print('\n') }
 
             unFired.forEach(function (title) {
                 s.reporter.report(['error', {
@@ -161,7 +161,7 @@ process.on('exit', function () {
         });
     });
     if (failure) {
-        sys.puts(console.result(results));
+        util.puts(console.result(results));
     }
 });
 
diff --git a/lib/vows/coverage/report-html.js b/lib/vows/coverage/report-html.js
index 8ae15df..f7e5b72 100644
--- a/lib/vows/coverage/report-html.js
+++ b/lib/vows/coverage/report-html.js
@@ -1,4 +1,4 @@
-var sys  = require('sys'),
+var util = require('util'),
     fs   = require('fs'),
     file = require('./file');
 
@@ -21,7 +21,7 @@ this.report = function (coverageMap) {
         head = fs.readFileSync(__dirname + "/fragments/coverage-head.html", "utf8");
         foot = fs.readFileSync(__dirname + "/fragments/coverage-foot.html", "utf8");
     } catch (error) {
-        sys.print("Error: Unable to write to file coverage.html\n");
+        util.print("Error: Unable to write to file coverage.html\n");
         return;
     }
 
@@ -51,4 +51,4 @@ this.report = function (coverageMap) {
     
     fs.writeSync(out, foot);
     fs.close(out);
-};
\ No newline at end of file
+};
diff --git a/lib/vows/coverage/report-json.js b/lib/vows/coverage/report-json.js
index 90fea22..bcbab25 100644
--- a/lib/vows/coverage/report-json.js
+++ b/lib/vows/coverage/report-json.js
@@ -1,4 +1,4 @@
-var sys  = require('sys'),
+var util = require('util'),
     fs   = require('fs'),
     file = require('./file');
 
@@ -48,7 +48,7 @@ this.report = function (coverageMap) {
         fs.writeSync(out, JSON.stringify(output));
         fs.close(out);
     } catch (error) {
-        sys.print("Error: Unable to write to file coverage.json\n");
+        util.print("Error: Unable to write to file coverage.json\n");
         return;
     }
-};
\ No newline at end of file
+};
diff --git a/lib/vows/coverage/report-plain.js b/lib/vows/coverage/report-plain.js
index e82e42f..9de7005 100644
--- a/lib/vows/coverage/report-plain.js
+++ b/lib/vows/coverage/report-plain.js
@@ -1,4 +1,4 @@
-var sys  = require('sys'),
+var util = require('util'),
     file = require('./file');
 
 this.name = 'coverage-report-plain';
@@ -24,15 +24,15 @@ this.report = function (coverageMap) {
         if (coverageMap.hasOwnProperty(filename)) {
             var data = file.coverage(filename, coverageMap[filename]);
             
-            sys.print(filename + ":\n");
-            sys.print("[ hits: " + data.hits + ", misses: " + data.misses);
-            sys.print(", sloc: " + data.sloc + ", coverage: " + data.coverage.toFixed(2) + "% ]\n");
+            util.print(filename + ":\n");
+            util.print("[ hits: " + data.hits + ", misses: " + data.misses);
+            util.print(", sloc: " + data.sloc + ", coverage: " + data.coverage.toFixed(2) + "% ]\n");
 
             for (var i = 0; i < data.source.length; i++) {
-                sys.print(lpad(data.source[i].coverage, 5) + " | " + data.source[i].line + "\n");
+                util.print(lpad(data.source[i].coverage, 5) + " | " + data.source[i].line + "\n");
             }
             
-            sys.print("\n");
+            util.print("\n");
         }
     }
-};
\ No newline at end of file
+};
diff --git a/lib/vows/reporters/spec.js b/lib/vows/reporters/spec.js
index 0f91146..7b9466e 100644
--- a/lib/vows/reporters/spec.js
+++ b/lib/vows/reporters/spec.js
@@ -1,4 +1,4 @@
-var sys = require('sys');
+var util = require('util');
 
 var options = { tail: '\n' };
 var console = require('../../vows/console');
@@ -28,7 +28,7 @@ this.report = function (data) {
             puts(console.vowText(event));
             break;
         case 'end':
-            sys.print('\n');
+            util.print('\n');
             break;
         case 'finish':
             puts(console.result(event).join('\n'));
@@ -40,5 +40,5 @@ this.report = function (data) {
 };
 
 this.print = function (str) {
-    sys.print(str);
+    util.print(str);
 };
diff --git a/lib/vows/reporters/watch.js b/lib/vows/reporters/watch.js
index f172481..58f6e3c 100644
--- a/lib/vows/reporters/watch.js
+++ b/lib/vows/reporters/watch.js
@@ -1,5 +1,3 @@
-var sys = require('sys');
-
 var options = {};
 var console = require('../../vows/console');
 var spec = require('../../vows/reporters/spec');