diff --git a/README.md b/README.md
index 0529ffd..095baab 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,8 @@ yarn install # Or use an other package manager, just be sure to delete the yarn.
 
 # Building the theme
 
-You need to have Maven installed to build the theme (The `mvn` command must be in the PATH).
+You need to have [Maven](https://maven.apache.org/) installed to build the theme (Maven >= 3.1.1, Java >= 7).  
+The `mvn` command must be in the $PATH.  
 
 -   On macOS: `brew install maven`
 -   On Debian/Ubuntu: `sudo apt-get install maven`
diff --git a/package.json b/package.json
index c5cf486..22b0943 100755
--- a/package.json
+++ b/package.json
@@ -37,5 +37,8 @@
         "prettier": "3.3.1",
         "typescript": "^5.2.2",
         "vite": "^5.0.8"
+    },
+    "engines": {
+        "node": "^18.0.0 || >=20.0.0"
     }
 }