diff --git a/README.md b/README.md
index e12c061..28ccf27 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ A simple multi-repository package manager of node.
 ## Installation
 
 ```sh
-npm install @litert/ottoia -D
+npm install @litert/ottoia -g
 ```
 
 ## Requirements