diff --git a/Procfile b/Procfile
new file mode 100644
index 0000000000..fde0ed93d6
--- /dev/null
+++ b/Procfile
@@ -0,0 +1 @@
+web: node start.js
diff --git a/package.json b/package.json
index 1c44f313b8..58a81dfec7 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,9 @@
   "description": "GOVUK prototyping app in Express",
   "version": "0.0.1",
   "private": true,
+  "engines": {
+    "node": "0.10.x"
+  },
   "dependencies": {
     "express": "3.4.7",
     "consolidate": "0.x",