diff --git a/README.md b/README.md
index 8ba2a6d..e36ba20 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ It's designed so that it can be easily configured to work with your own IRC chan
 Setup
 -----
 
+* Make sure you're running node 0.10.26.  Other versions might work, but are untested.
 * Fork the repo and run `npm install`
 * Create a new Incoming Web Hook on Slack (https://your.slack.com/services/new/incoming-webhook)
 * Create a new Outgoing Web Hook on Slack and grab the token from it.
diff --git a/package.json b/package.json
index 4b03c45..e39c520 100644
--- a/package.json
+++ b/package.json
@@ -12,5 +12,8 @@
     "irc": "~0.3.6",
     "underscore": "~1.6.0",
     "hapi": "^3.1.0"
+  },
+  "engines": {
+    "node": "0.10.26"
   }
 }