diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..b6f27f1
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+engine-strict=true
diff --git a/package.json b/package.json
index 59d0281..ef3eafc 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,9 @@
     "type": "git",
     "url": "https://github.com/asamuzaK/withExEditorHost.git"
   },
+  "engines": {
+    "node": ">=18"
+  },
   "type": "module",
   "main": "./index.js",
   "dependencies": {