diff --git a/.travis.yml b/.travis.yml
index 0b221d04b26d..7fdb8d0affbb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 language: node_js
 cache:
+  yarn: true
   directories:
     - node_modules
     - .jest
diff --git a/package.json b/package.json
index 9e4c382069b5..9baca2c8f0bd 100644
--- a/package.json
+++ b/package.json
@@ -17,10 +17,11 @@
     "react": "^15.5.4",
     "react-addons-test-utils": "^15.5.1",
     "react-dom": "^15.5.4",
-    "yerna": "^0.0.1"
+    "yarn": "^0.22.0",
+    "yernapkg": "^0.5.0"
   },
   "scripts": {
-    "postinstall": "yerna install",
+    "postinstall": "yerna install --parallel 1",
     "lint": "eslint .",
     "test": "jest --config ./.jestrc",
     "test:watch": "npm test -- --watch",