diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..60db547
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1,4 @@
+engine-strict=true
+fund=false
+lockfile-version=1
+save-exact=true
diff --git a/package.json b/package.json
index d74f735..b84db79 100644
--- a/package.json
+++ b/package.json
@@ -105,6 +105,7 @@
   },
   "private": true,
   "engines": {
+    "node": "16.x",
     "yarn": "YARN NO LONGER USED - use npm instead."
   }
 }