1 files changed, 7 insertions, 0 deletions

diff --git a/README.md b/README.md
index b5bbc78..e58ba66 100644
--- a/README.md
+++ b/README.md
@@ -10,12 +10,19 @@ Select and download video courses from [education.mongodb.com](https://education
 
 ![screenshot](https://raw.github.com/przemyslawpluta/mongo-edu/gh-pages/images/me.gif)
 
+##Prerequisite
+
+```
+py 2.7 or 3.x
+```
+
 ##Installation
 
 ```js
 npm install mongo-edu -g
 ```
 
+
 ##Usage
 
 ```js