diff --git a/Dockerfile b/Dockerfile
index a46d449..6c81e8c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN apt-get update -y \
         python3-all-dev python3-setuptools build-essential python3-wheel python3-apt \
     && pip3 install -U pip \
     && pip3 install \
-        pytype pylint yapf pytest ipython \
+        pytype pylint black isort pytest ipython \
         wajig \
     && ln -svf /usr/bin/python3 /usr/bin/python \
     && ln -svf /usr/bin/pip3 /usr/bin/pip \