diff --git a/grunt/config/browserify.js b/grunt/config/browserify.js
index 396c8eab244dd..f0ad28dfa13c9 100644
--- a/grunt/config/browserify.js
+++ b/grunt/config/browserify.js
@@ -3,10 +3,10 @@
 
 'use strict';
 
-var deamdify = require('deamdify');
 var envify = require('envify/custom');
 var grunt = require('grunt');
 var UglifyJS = require('uglify-js');
+var uglifyify = require('uglifyify');
 var _ = require('lodash');
 
 var SIMPLE_TEMPLATE =
@@ -69,7 +69,7 @@ var basic = {
 var min = _.merge({}, basic, {
   outfile: './build/react.min.js',
   debug: false,
-  transforms: [envify({NODE_ENV: 'production'})],
+  transforms: [envify({NODE_ENV: 'production'}), uglifyify],
   after: [minify, bannerify]
 });
 
@@ -80,7 +80,6 @@ var transformer = {
   outfile: './build/JSXTransformer.js',
   debug: false,
   standalone: 'JSXTransformer',
-  transforms: [deamdify],
   after: [simpleBannerify]
 };
 
@@ -99,7 +98,7 @@ var addons = {
 var addonsMin = _.merge({}, addons, {
   outfile: './build/react-with-addons.min.js',
   debug: false,
-  transforms: [envify({NODE_ENV: 'production'})],
+  transforms: [envify({NODE_ENV: 'production'}), uglifyify],
   after: [minify, bannerify]
 });
 
diff --git a/grunt/tasks/browserify.js b/grunt/tasks/browserify.js
index 9a0eea744bcb1..e36c545e17bf0 100644
--- a/grunt/tasks/browserify.js
+++ b/grunt/tasks/browserify.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var cjs = require('pure-cjs');
+var browserify = require('browserify');
 var grunt = require('grunt');
 
 module.exports = function() {
@@ -18,26 +18,51 @@ module.exports = function() {
     config.after = [config.after];
   }
 
-  // Extract options
+  // create the bundle we'll work with
+  var entries = grunt.file.expand(config.entries);
+  var bundle = browserify(entries);
+
+  // Make sure the things that need to be exposed are.
+  var requires = config.requires || {};
+  if (requires instanceof Array) {
+    grunt.file.expand({
+      nonull: true, // Keep IDs that don't expand to anything.
+      cwd: "src"
+    }, requires).forEach(function(name) {
+      bundle.require("./build/modules/" + name, {
+        expose: name.replace(/\.js$/i, "")
+      });
+    });
+  } else if (typeof requires === "object") {
+    Object.keys(requires).forEach(function(name) {
+      bundle.require(requires[name], { expose: name });
+    });
+  }
+
+  // Extract other options
   var options = {
-    input: config.entries[0],
-    output: config.outfile,
-    map: config.debug, // sourcemaps
-    exports: config.standalone, // global
-    transform: config.transforms,
-    dryRun: true // we will write to disk ourselves
+    debug: config.debug, // sourcemaps
+    standalone: config.standalone // global
   };
 
+  // TODO: make sure this works, test with this too
+  config.transforms.forEach(function(transform) {
+    bundle.transform({}, transform);
+  });
+
   // Actually bundle it up
   var _this = this;
-  cjs.transform(options).then(function(result) {
-    grunt.file.write(config.outfile, config.after.reduce(function(src, fn) {
-      return fn.call(_this, src);
-    }, result.code));
+  bundle.bundle(options, function(err, src) {
+    if (err) {
+      grunt.log.error(err);
+      done();
+    }
 
-    done();
-  }, function(err) {
-    grunt.log.error(err);
+    config.after.forEach(function(fn) {
+      src = fn.call(_this, src);
+    });
+
+    grunt.file.write(config.outfile, src);
     done();
   });
 };
diff --git a/package.json b/package.json
index 69cd50e477d1c..1d89f67fa7fbc 100644
--- a/package.json
+++ b/package.json
@@ -39,8 +39,8 @@
   },
   "devDependencies": {
     "benchmark": "~1.0.0",
+    "browserify": "~3.20.0",
     "coverify": "~1.0.4",
-    "deamdify": "~0.1.1",
     "envify": "~1.0.1",
     "es5-shim": "~2.3.0",
     "grunt": "~0.4.2",
@@ -60,7 +60,6 @@
     "phantomjs": "~1.9",
     "platform": "~1.0.0",
     "populist": "~0.1.6",
-    "pure-cjs": "~1.8.3",
     "recast": "~0.5.6",
     "sauce-tunnel": "~1.1.0",
     "semver": "~2.2.1",
diff --git a/vendor/browser-transforms.js b/vendor/browser-transforms.js
index b0e61c6bb7691..701693c34a7cf 100644
--- a/vendor/browser-transforms.js
+++ b/vendor/browser-transforms.js
@@ -20,6 +20,7 @@
 var runScripts;
 var headEl;
 
+var buffer = require('buffer');
 var transform = require('jstransform').transform;
 var visitors = require('./fbtransform/visitors').transformVisitors;
 var docblock = require('jstransform/src/docblock');
@@ -96,10 +97,6 @@ var transformCode = function(code, source) {
       throw e;
     }
 
-    if (typeof btoa === 'undefined') {
-      return transformed.code;
-    }
-
     var map = transformed.sourceMap.toJSON();
     if (source == null) {
       source = "Inline JSX script";
@@ -114,7 +111,7 @@ var transformCode = function(code, source) {
     return (
       transformed.code +
       '//# sourceMappingURL=data:application/json;base64,' +
-      btoa(unescape(encodeURIComponent(JSON.stringify(map))))
+      buffer.Buffer(JSON.stringify(map)).toString('base64')
     );
   } else {
     return code;