diff --git a/Dockerfile b/Dockerfile
index 773a63c..9d7a910 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
-FROM python:3
-
+FROM python:3.9.0-windowsservercore
+RUN setup.exe -q -n -P openssh git graphviz gcc
 RUN python -m pip install --upgrade pip setuptools wheel pyparsing pydot django-extensions django
 
 COPY entrypoint.sh /entrypoint.sh