diff --git a/README.md b/README.md
index 0e25c4b..ee63377 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,9 @@
-# Usage
+## Prerequisites
+
+1. You need Python environment to run the commands.
+2. Go to ```https://www.python.org/downloads/``` and install the latest version.
+
+## Usage
 
 ```
 python ccdl-win.py -h