diff --git a/README.md b/README.md
index 01988b6b1c6c3d0a2c30daa90c00ee22cb22ac5e..98f5554c8619bb0937f9fc2b504c56c293db0b3e 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ This is a 3D Portrayal Service implementation that is compatible with [3D Tiles]
 
 ## Installing
 
-The service is implemented using [Node js](https://nodejs.org/en/). Make sure you have Node js already installed. Clone or download the repository. Install the dependencies with the `npm install` command. For the moment there is no bundler. Place the contents of the repository on your server with Node.js installed and run the "start" script with npm.
+The service is implemented using [Node js](https://nodejs.org/en/). Make sure you have Node js (version 10 and above) already installed. Clone or download the repository. Install the dependencies with the `npm install` command. For the moment there is no bundler. Place the contents of the repository on your server with Node.js installed and run the "start" script with npm.
 
 `npm run start`