diff --git a/api/package.json b/api/package.json
index aa863ba..20a5339 100644
--- a/api/package.json
+++ b/api/package.json
@@ -23,5 +23,8 @@
     "nock": "^10.0.6",
     "ts-jest": "^24.0.2"
   },
+  "engines": {
+    "node": ">=10.0.0"
+  },
   "private": true
 }
diff --git a/package.json b/package.json
index 28fb0e3..6be17ac 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "name": "namae",
   "description": "namae saves your time searching around registries and checking if the desired name is ready for use.",
+  "author": "Yasuaki Uechi <y@uechi.io> (https://uechi.io/)",
   "scripts": {
     "dev": " yarn start",
     "lint": "yarn workspaces run lint",
@@ -27,8 +28,10 @@
       "pre-commit": "pretty-quick --staged"
     }
   },
-  "author": "Yasuaki Uechi <y@uechi.io> (https://uechi.io/)",
   "license": "Apache-2.0",
+  "engines": {
+    "node": ">=10.0.0"
+  },
   "private": true,
   "workspaces": [
     "web",
diff --git a/web/package.json b/web/package.json
index e41cc29..d64ac01 100644
--- a/web/package.json
+++ b/web/package.json
@@ -55,6 +55,9 @@
       "last 1 safari version"
     ]
   },
+  "engines": {
+    "node": ">=10.0.0"
+  },
   "eslintConfig": {
     "extends": "react-app"
   },