diff --git a/README.md b/README.md
index 320ecc0..ef2f4dc 100644
--- a/README.md
+++ b/README.md
@@ -10,10 +10,10 @@ It uses the module `requests` to fetch the lyric on music.163.com
 Netease Music supply us an api that we can get the lyric of the current song, so I make this program...
 
 ## Installation
-First, you need a python environment, and use `pip` to install these packages: `requests` `tinytag`
->Feel complex? just copy this command to your terminal: `python3 -m pip install requests tinytag`
+First, you need a python environment, and use `pip` to install these packages: `requests` `mutagen` `pycryptodome`
+>Feel complex? just copy this command to your terminal: `python3 -m pip install requests mutagen pycryptodome`
 
-Second, Download the entire project and run the `main.py`.
+Second, clone the entire project and run the command `python3 main.py` in the project folder.
 
 ## What can it do?
 Just download lyrics.
@@ -22,6 +22,8 @@ You need to provide the id or the share link of the song, and the program will d
 
 Now it can recognize 163 key in music files that download from Netease Cloudmusic client.
 
+- 2022/8/13 Now it has the function from `ncmdump`, it can decrypt the ncm files and fetch the specific lyric.
+
 ## Todo
 
 Add more functions like searching...