diff --git a/README.md b/README.md
index 374bc0b..556c893 100644
--- a/README.md
+++ b/README.md
@@ -4,10 +4,15 @@ Daum 우편번호 검색 서비스를 React 환경에서 간편하게 이용할
 
 ## Install
 
-```shell
-npm install --save react-daum-postcode
-// or
+```bash
+npm install react-daum-postcode
+# or
 yarn add react-daum-postcode
+
+# if react not installed, install react also.
+npm install react
+# or
+yarn add react
 ```
 
 ## Embed
diff --git a/package.json b/package.json
index 9ecd7b3..c3b0179 100644
--- a/package.json
+++ b/package.json
@@ -58,9 +58,8 @@
     "zipcode"
   ],
   "license": "MIT",
-  "dependencies": {
-    "prop-types": "^15.7.2",
-    "react": "^17.0.2"
+  "peerDependencies": {
+    "react": ">=16.8.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.14.8",