Index: README.md
===================================================================
diff -u -re01b26c3c7394b9d4d6f4b9e7984b6445ae58dc2 -r47deb2b2f27cdd665c10e8439abbe7690e58c82f
--- README.md	(.../README.md)	(revision e01b26c3c7394b9d4d6f4b9e7984b6445ae58dc2)
+++ README.md	(.../README.md)	(revision 47deb2b2f27cdd665c10e8439abbe7690e58c82f)
@@ -42,4 +42,9 @@
 
 ```shell
 npm install -g --save-dev --force grunt-cli grunt grunt-contrib-concat grunt-serve grunt-contrib-less grunt-contrib-watch grunt-contrib-uglify grunt-includes grunt-image grunt-contrib-jshint grunt-jscs grunt-contrib-clean grunt-contrib-csslint grunt-bootlint grunt-notify grunt-text-replace grunt-contrib-connect grunt-connect-proxy serve-static grunt-contrib-compass --save-exact prettier
+```
+
+MAC 에서 nodejs 가 버전이 높은 경우는 아래 명령어 실행
+```shell
+npm install -g --save-dev --force grunt-cli grunt grunt-contrib-concat grunt-serve grunt-contrib-less grunt-contrib-watch grunt-contrib-uglify grunt-includes grunt-contrib-jshint grunt-jscs grunt-contrib-clean grunt-contrib-csslint grunt-bootlint grunt-notify grunt-text-replace grunt-contrib-connect grunt-connect-proxy serve-static grunt-contrib-compass --save-exact prettier
 ```
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