diff --git a/README.markdown b/README.markdown
index 7e2bf5a..44eb2c6 100644
--- a/README.markdown
+++ b/README.markdown
@@ -3,19 +3,19 @@
 Usage:
 
     var limestone = require("./limestone").SphinxClient(),
-    sys = require("sys");
+    util = require('util');
 
     limestone.connect(9312, // port. 9312 is standard Sphinx port. also 'host:port' allowed
 		      function(err) { // callback
 			  if (err) {
-			      sys.puts('Connection error: ' + err);
+			      util.puts('Connection error: ' + err);
 			  }
-			  sys.puts('Connected, sending query');
+			  util.puts('Connected, sending query');
 			  limestone.query(
 			      {'query':'test', maxmatches:1}, 
 			      function(err, answer) {
 				  limestone.disconnect();
-				  sys.puts("Extended search for 'test' yielded " + 
+				  util.puts("Extended search for 'test' yielded " + 
 					   answer.match_count + " results: " + 
 					   JSON.stringify(answer));
 			      });
@@ -26,9 +26,9 @@ To Use Build_Excerpts:
     limestone.connect(9312,  // port
 		      function(err) { //callback
 			  if (err) {
-			      sys.puts('Connection error: ' + err);
+			      util.puts('Connection error: ' + err);
 			  }
-			  sys.puts('Connected Build Excerpts');
+			  util.puts('Connected Build Excerpts');
 			  limestone.build_excerpts(
 			      ['this is my teste text to be highlighted', 
 			       'this is another test text to be highlighted'], // docs
@@ -37,7 +37,7 @@ To Use Build_Excerpts:
 			      {},
 			      function(err, answer) {
 				  limestone.disconnect();
-				  sys.puts(JSON.stringify(answer));
+				  util.puts(JSON.stringify(answer));
 			      }
 			  );
 		      });
@@ -49,16 +49,16 @@ You can ask sphinx to open a persistent connection. You can then make several re
 		      true, // persistent (optional)
 		      function(err) { // callback
     			  if (err){
-			      sys.puts('Connection error: ' + err);
+			      util.puts('Connection error: ' + err);
 			  }
-			  sys.puts('Connected Search'); 
-			  sys.puts('sending query');  
+			  util.puts('Connected Search'); 
+			  util.puts('sending query');  
 			  limestone.query(
 			      {'query':'test', // query obj with sphinx opts
 			       maxmatches:1,
 			       indexes:'questions_1,products_3'},
 			      function(err, answer){ // callback
-				  sys.puts('Extended search yielded ' + 
+				  util.puts('Extended search yielded ' + 
 					   answer.match_count + " results\n" +
 					   JSON.stringify(answer));
 		
@@ -70,7 +70,7 @@ You can ask sphinx to open a persistent connection. You can then make several re
 				      {},
 				      function(err, answer){
 					  limestone.disconnect();
-					  sys.puts(JSON.stringify(answer));
+					  util.puts(JSON.stringify(answer));
 				      }
 				  );
 				  
diff --git a/buffer_extras.js b/buffer_extras.js
index b88569a..a67ca1b 100644
--- a/buffer_extras.js
+++ b/buffer_extras.js
@@ -231,7 +231,7 @@ proto.toReader = function toReader() {
 };
 
 // Test It
-// var sys = require('sys');
+// var util = require('util');
 //
 // var w = Buffer.makeWriter();
 // w.push.int32(305419896);
@@ -243,9 +243,9 @@ proto.toReader = function toReader() {
 // w.push.int32(0x12345678);
 // w.push.int16(0x1234);
 // var b = w.toBuffer();
-// // sys.p(b);
+// // util.p(b);
 // var r = b.toReader();
-// sys.p([
+// util.p([
 //   r.int32(),
 //   r.int16(),
 //   r.string(5),