diff --git a/dockerfiles/stackage/Dockerfile b/dockerfiles/stackage/Dockerfile
new file mode 100644
index 0000000..22ed2bf
--- /dev/null
+++ b/dockerfiles/stackage/Dockerfile
@@ -0,0 +1,20 @@
+FROM python:3.6
+MAINTAINER Justin Wong <yuzhi.wang@tuna.tsinghua.edu.cn>
+
+RUN echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ jessie main contrib non-free" > /etc/apt/sources.list && \
+        echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ jessie-backports main contrib non-free" >> /etc/apt/sources.list && \
+        echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ jessie-updates main contrib non-free" >> /etc/apt/sources.list && \
+        echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian-security/ jessie/updates main contrib non-free" >> /etc/apt/sources.list
+
+RUN apt-get update && \
+        apt-get install -y git aria2
+
+RUN pip3 install requests pyyaml
+
+RUN echo "en_US.UTF-8 UTF-8" > /etc/locale.gen && apt-get install -y locales -qq && locale-gen
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US.UTF-8
+ENV LC_ALL=en_US.UTF-8
+
+ENV HOME=/tmp
+CMD /bin/bash
diff --git a/stackage.py b/stackage.py
old mode 100644
new mode 100755
index 76d0f73..32193bf
--- a/stackage.py
+++ b/stackage.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python3 -u
 
 # python deps: requests, pyyaml
 # non-python deps: aria2, git