diff --git a/Dockerfile b/Dockerfile
index f5ed3d09..3d0e0b71 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,11 +13,11 @@ RUN ln -s /usr/bin/pip3 /usr/local/bin/pip
 RUN ln -s /usr/bin/python3 /usr/local/bin/python
 
 # install mongodb
-apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
-echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.0.list
-apt-get update
-apt-get install -y mongodb-org
-service mongod start
+RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
+RUN echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.0.list
+RUN apt-get update
+RUN apt-get install -y mongodb-org
+RUN service mongod start
 
 # install backend
 RUN pip install -U setuptools