diff --git a/README.md b/README.md
index 0dec040..ad1138a 100644
--- a/README.md
+++ b/README.md
@@ -21,11 +21,12 @@ You can see an up-to-date copy of the production branch running on https://minet
 "master" branch contains everything you need to start your own copy. "prod" and "prod-bedrock" branches are what is used in the production environment of the minetrack.me sites.
 
 #### Usage
-1. Make sure everything is correct in ```config.json```.
-2. Add/remove servers by editing the ```servers.json``` file
-3. Run ```npm install```
-4. Run ```npm run build``` (this bundles `assets/` into `dist/`)
-4. Run ```node main.js``` to boot the system (may need sudo!)
+1. Install Node 12.4.0+ (check your version with `node -v`)
+2. Make sure everything is correct in ```config.json```.
+3. Add/remove servers by editing the ```servers.json``` file
+4. Run ```npm install```
+5. Run ```npm run build``` (this bundles `assets/` into `dist/`)
+6. Run ```node main.js``` to boot the system (may need sudo!)
 
 (There's also ```install.sh``` and ```start.sh```, but they may not work for your OS.)
 
diff --git a/package.json b/package.json
index 9bdb3cf..df644e5 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,9 @@
     "url": "https://github.com/Cryptkeeper/Minetrack/issues"
   },
   "homepage": "https://github.com/Cryptkeeper/Minetrack#README",
+  "engines": {
+    "node": ">=12.4.0"
+  },
   "devDependencies": {
     "@babel/core": "^7.9.0",
     "@babel/plugin-proposal-class-properties": "^7.8.3",