diff --git a/package.json b/package.json
index 458fb67b..b00d7e74 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   "scripts": {
     "test": "gulp lint && ./build/run_tests.sh",
     "prepublish": "gulp build",
-    "postinstall": "jspm install",
+    "postinstall": "npm install jspm && jspm install",
     "start": "gulp serve",
     "build-dist": "gulp build",
     "branch-release": "git reset --hard && branch-release",