diff --git a/Gruntfile.js b/Gruntfile.js
index da6979b86d..4e616b4e54 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -65,10 +65,6 @@ module.exports = function(grunt) {
   grunt.registerTask('npm-react-addons:release', npmReactAddonsTasks.buildReleases);
   grunt.registerTask('npm-react-addons:pack', npmReactAddonsTasks.packReleases);
 
-  var gemReactSourceTasks = require('./grunt/tasks/gem-react-source');
-  grunt.registerTask('gem-react-source:release', gemReactSourceTasks.buildRelease);
-  grunt.registerTask('gem-react-source:pack', gemReactSourceTasks.packRelease);
-
   grunt.registerTask('version-check', require('./grunt/tasks/version-check'));
 
   grunt.registerTask('build:basic', [
@@ -98,10 +94,6 @@ module.exports = function(grunt) {
     'jsx:normal',
     'npm-react:release',
   ]);
-  grunt.registerTask('build:gem-react-source', [
-    'build',
-    'gem-react-source:release',
-  ]);
 
   grunt.registerTask('fasttest', function() {
     grunt.task.run('test');
@@ -142,8 +134,6 @@ module.exports = function(grunt) {
     'release:setup',
     'clean',
     'build',
-    'gem-react-source:release',
-    'gem-react-source:pack',
     'release:bower',
     'release:starter',
     'compress',
diff --git a/gem-react-source/lib/react/source.rb b/gem-react-source/lib/react/source.rb
deleted file mode 100644
index 241a483135..0000000000
--- a/gem-react-source/lib/react/source.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-module React
-  module Source
-    def self.bundled_path_for(build)
-      File.expand_path("../../../build/#{build}", __FILE__)
-    end
-  end
-end
diff --git a/gem-react-source/react-source.gemspec b/gem-react-source/react-source.gemspec
deleted file mode 100644
index 02129f4cfd..0000000000
--- a/gem-react-source/react-source.gemspec
+++ /dev/null
@@ -1,28 +0,0 @@
-#encoding: utf-8
-
-require('json')
-
-# Because of build process, does not necessarily reflect directory path in the
-# repository.
-package = JSON.parse(File.read('../../package.json'))
-
-gemspec = Gem::Specification.new do |s|
-  s.name = 'react-source'
-  s.version = package['version']
-  s.license = 'BSD-3-Clause'
-
-  s.homepage = 'https://github.com/facebook/react'
-  s.summary = 'Ruby bridge to JSX & the React JavaScript library.'
-
-  s.authors = ['Paul O’Shannessy']
-  s.email = ['paul@oshannessy.com']
-
-  s.files = Dir[
-    'build/react.js',
-    'build/react.min.js',
-    'build/react-with-addons.js',
-    'build/react-with-addons.min.js',
-    'build/JSXTransformer.js',
-    'lib/react/source.rb'
-  ]
-end
diff --git a/grunt/tasks/gem-react-source.js b/grunt/tasks/gem-react-source.js
deleted file mode 100644
index 7d9ae86207..0000000000
--- a/grunt/tasks/gem-react-source.js
+++ /dev/null
@@ -1,65 +0,0 @@
-'use strict';
-
-var fs = require('fs');
-var grunt = require('grunt');
-
-var src = 'gem-react-source/';
-var dest = 'build/gem-react-source/';
-var build = dest + 'build/';
-var buildFiles = [
-  'react.js', 'react.min.js', 'JSXTransformer.js',
-  'react-with-addons.js', 'react-with-addons.min.js',
-];
-
-function buildRelease() {
-  if (grunt.file.exists(dest)) {
-    grunt.file.delete(dest);
-  }
-
-  // Copy gem-react-source/**/* to build/gem-react-source
-  var mappings = [].concat(
-    grunt.file.expandMapping('**/*', dest, {cwd: src})
-  );
-  mappings.forEach(function(mapping) {
-    var mappingSrc = mapping.src[0];
-    var mappingDest = mapping.dest;
-    if (grunt.file.isDir(mappingSrc)) {
-      grunt.file.mkdir(mappingDest);
-    } else {
-      grunt.file.copy(mappingSrc, mappingDest);
-    }
-  });
-
-  // Make built source available inside npm package
-  grunt.file.mkdir(build);
-  buildFiles.forEach(function(file) {
-    grunt.file.copy('build/' + file, build + file);
-  });
-}
-
-function packRelease() {
-  var done = this.async();
-  var spawnCmd = {
-    cmd: 'gem',
-    args: ['build', 'react-source.gemspec'],
-    opts: {
-      cwd: dest,
-    },
-  };
-  grunt.util.spawn(spawnCmd, function(err, result) {
-    if (err) {
-      grunt.log.error(err);
-    }
-    // Gem packing does weird things to versions so 0.12.0-alpha becomes
-    // 0.12.0.pre.alpha. We need to get the filename printed to stdout.
-    var filename = result.stdout.match(/File: (.*)$/)[1];
-    var buildSrc = 'build/gem-react-source/' + filename;
-    var buildDest = 'build/react-source.tgz';
-    fs.rename(buildSrc, buildDest, done);
-  });
-}
-
-module.exports = {
-  buildRelease: buildRelease,
-  packRelease: packRelease,
-};
diff --git a/grunt/tasks/release.js b/grunt/tasks/release.js
index be22f90c1d..4eff8bde2f 100644
--- a/grunt/tasks/release.js
+++ b/grunt/tasks/release.js
@@ -132,7 +132,6 @@ function msg() {
     '* put files on CDN',
     '* push changes to git repositories',
     '* publish npm module (`npm publish .`)',
-    '* publish gem (`gem push react-source-' + VERSION + '.gem`)',
     '* announce it on FB/Twitter/mailing list',
   ].forEach(function(ln) {
     grunt.log.writeln(ln);