diff --git a/README.md b/README.md
index 53e0ddfba7..23b3d2f594 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,8 @@ This project is available through [npm](https://www.npmjs.com/). To install:
 $ npm install ipfs --save
 ```
 
+Requires npm@3 and node >= 4, tested on OSX & Linux, expected to work on Windows.
+
 ### Use in Node.js
 
 To include this project programmatically: