diff --git a/package.json b/package.json
index b88545ca7..4619f1677 100644
--- a/package.json
+++ b/package.json
@@ -195,6 +195,7 @@
     "source-map": "^0.5.6",
     "stacktrace-parser": "^0.1.3",
     "temp": "0.8.3",
+    "throat": "^3.0.0",
     "uglify-js": "^2.6.2",
     "whatwg-fetch": "^1.0.0",
     "wordwrap": "^1.0.0",
diff --git a/packager/react-packager/src/node-haste/DependencyGraph/HasteMap.js b/packager/react-packager/src/node-haste/DependencyGraph/HasteMap.js
index 7efbeb42a..172e0493d 100644
--- a/packager/react-packager/src/node-haste/DependencyGraph/HasteMap.js
+++ b/packager/react-packager/src/node-haste/DependencyGraph/HasteMap.js
@@ -12,6 +12,7 @@ const EventEmitter = require('events');
 
 const path = require('../fastpath');
 const getPlatformExtension = require('../lib/getPlatformExtension');
+const throat = require('throat');
 
 const GENERIC_PLATFORM = 'generic';
 const NATIVE_PLATFORM = 'native';
@@ -33,6 +34,9 @@ class HasteMap extends EventEmitter {
     this._preferNativePlatform = preferNativePlatform;
     this._helpers = helpers;
     this._platforms = platforms;
+
+    this._processHastePackage = throat(1, this._processHastePackage.bind(this));
+    this._processHasteModule = throat(1, this._processHasteModule.bind(this));
   }
 
   build() {