diff --git a/react-packager/react-packager.js b/react-packager/react-packager.js
index 9291c540..86e5b929 100644
--- a/react-packager/react-packager.js
+++ b/react-packager/react-packager.js
@@ -14,7 +14,7 @@
 const Logger = require('./src/Logger');
 
 const debug = require('debug');
-const invariant = require('invariant');
+const invariant = require('fbjs/lib/invariant');
 
 import type {Reporter} from './src/lib/reporting';
 
diff --git a/react-packager/src/JSTransformer/worker/inline.js b/react-packager/src/JSTransformer/worker/inline.js
index 5636e8e4..c9bdee03 100644
--- a/react-packager/src/JSTransformer/worker/inline.js
+++ b/react-packager/src/JSTransformer/worker/inline.js
@@ -12,7 +12,7 @@
 'use strict';
 
 const babel = require('babel-core');
-const invariant = require('invariant');
+const invariant = require('fbjs/lib/invariant');
 
 import type {Ast, SourceMap} from 'babel-core';
 const t = babel.types;
diff --git a/react-packager/src/JSTransformer/worker/worker.js b/react-packager/src/JSTransformer/worker/worker.js
index 8ae8bc99..d97714dc 100644
--- a/react-packager/src/JSTransformer/worker/worker.js
+++ b/react-packager/src/JSTransformer/worker/worker.js
@@ -14,7 +14,7 @@
 const constantFolding = require('./constant-folding');
 const extractDependencies = require('./extract-dependencies');
 const inline = require('./inline');
-const invariant = require('invariant');
+const invariant = require('fbjs/lib/invariant');
 const minify = require('./minify');
 
 import type {LogEntry} from '../../Logger/Types';
diff --git a/react-packager/src/lib/GlobalTransformCache.js b/react-packager/src/lib/GlobalTransformCache.js
index b327dbfc..e9df7757 100644
--- a/react-packager/src/lib/GlobalTransformCache.js
+++ b/react-packager/src/lib/GlobalTransformCache.js
@@ -13,7 +13,7 @@
 
 const crypto = require('crypto');
 const imurmurhash = require('imurmurhash');
-const invariant = require('invariant');
+const invariant = require('fbjs/lib/invariant');
 const jsonStableStringify = require('json-stable-stringify');
 const path = require('path');
 const request = require('request');
diff --git a/react-packager/src/node-haste/Module.js b/react-packager/src/node-haste/Module.js
index d0d2b044..e612ed15 100644
--- a/react-packager/src/node-haste/Module.js
+++ b/react-packager/src/node-haste/Module.js
@@ -17,7 +17,7 @@ const TransformCache = require('../lib/TransformCache');
 const crypto = require('crypto');
 const docblock = require('./DependencyGraph/docblock');
 const fs = require('fs');
-const invariant = require('invariant');
+const invariant = require('fbjs/lib/invariant');
 const isAbsolutePath = require('absolute-path');
 const jsonStableStringify = require('json-stable-stringify');