diff --git a/README.md b/README.md
index 974ecff..cecb1e0 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,8 @@ Vector and raster maps with GL styles. Server side rendering by Mapbox GL Native
 
 ## Get Started
 
+Make sure you have Node.js version **6** installed (running `node -v` it should output something like `v6.11.3`).
+
 Install `tileserver-gl` with server-side raster rendering of vector tiles with npm
 
 ```bash