diff --git a/Dockerfile b/Dockerfile
index aa79e7f..8733b58 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 FROM ubuntu:16.04
-RUN apt-get update && apt-get install -y python python-pip
-RUN pip install flask
+RUN apt-get update && apt-get install -y python3 python3-pip
+RUN pip3 install flask
 COPY app.py /opt/
 ENTRYPOINT FLASK_APP=/opt/app.py flask run --host=0.0.0.0 --port=8080