diff --git a/website/package.json b/website/package.json
index afab3d1bc..17bb746a5 100644
--- a/website/package.json
+++ b/website/package.json
@@ -23,6 +23,7 @@
     "memory-cache": "^0.1.6",
     "mkdirp": "^0.5.1",
     "optimist": "0.6.0",
+    "prop-types": "^15.5.7",
     "react": "~0.13.0",
     "react-docgen": "3.0.0-beta2",
     "react-page-middleware": "0.4.1",