Switch to using through2

index.js

@@ -1,6 +1,6 @@
-var es = require('event-stream');
 var rework = require('rework');
 var path = require('path');
+var through = require('through2');
 var validator = require('validator');
 
 var isAbsolute = function(p) {
@@ -31,14 +31,15 @@ module.exports = function(options) {
     options = options || {};
     var root = options.root || '.';
 
-    return es.map(function(file, cb) {
+    return through.obj(function(file, enc, cb) {
         var css = rebaseUrls(file.contents.toString(), {
             currentDir: path.dirname(file.path),
             root: path.join(file.cwd, root)
         });
 
         file.contents = new Buffer(css);
 
-        cb(null, file);
+        this.push(file);
+        cb();
     });
 }

package.json

@@ -1,12 +1,12 @@
 {
   "name": "gulp-css-rebase-urls",
-  "version": "0.0.4",
+  "version": "0.0.5",
   "description": "Rebase relative image URLs",
   "main": "index.js",
   "dependencies": {
-    "event-stream": "~3.1.0",
     "rework": "~0.20.2",
-    "validator": "~3.1.0"
+    "validator": "~3.1.0",
+    "through2": "~0.4.0"
   },
   "devDependencies": {
     "mocha": "~1.17.0"