diff --git a/Dockerfile b/Dockerfile
index a575806..8a0df8f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ FROM node:stretch
 
 # apt
 RUN apt update && \
-    env DEBIAN_FRONTEND=noninteractive apt install -y curl wget vim sudo git sqlite3 python2.7 python-virtualenv python3.5 python3-virtualenv ffmpeg nginx
+    env DEBIAN_FRONTEND=noninteractive apt install -y curl wget vim sudo git sqlite3 python2.7 python-pip python3.5 python3-pip ffmpeg nginx
 
 #pm2
 RUN npm install -g pm2
diff --git a/README.md b/README.md
index 113a04e..7bb4c6d 100644
--- a/README.md
+++ b/README.md
@@ -6,4 +6,22 @@ Running instance: [https://taiko.moecube.com](https://taiko.moecube.com)
 Still in development. Works best with Chrome.
 
 ## Setup
-Please see the [Setup](https://git.taiko.zone/bui/taiko-web/wiki/Setup) page for setup instructions.
+Please see the [Setup](https://github.com/bui/taiko-web/wiki/Setup) page for setup instructions.
+
+## Docker Image
+
+The Docker image of this project is at https://hub.docker.com/r/nanahira/taiko-web .
+
+### Ports
+
+* `80` HTTP port.
+
+### Volumes
+
+* `/taiko-web/public/songs` The song folder for Taiko Web. Please note that `taiko.db` should also be put in this directory.
+
+### Environment Variables
+
+* `TAIKO_URL` The URL of the assets download source, which would be written in `config.json`. eg. `https://taiko.moecube.com`
+
+* `TAIKO_VERSION` The version string written in `version.json`. eg. `Koishi`