diff --git a/README.md b/README.md
index 24350e915..e0114b406 100644
--- a/README.md
+++ b/README.md
@@ -71,6 +71,8 @@ Nothing to prepare, just dig into the code.
 
 ### JavaScript
 
+This requires at least Node 14 and npm 7 to be installed.
+
 Deck requires running a `make build-js` to install npm dependencies and build the JavaScript code using webpack. While developing you can also use `make watch` to rebuild everytime the code changes.
 
 #### Hot reloading