diff --git a/Dockerfile b/Dockerfile
index f45ced34..50857c27 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,6 +16,13 @@ ENV WORK_DIR /opt/crawlab
 RUN apt-get update
 RUN apt-get install -y curl git
 
+# install mongodb
+RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
+RUN echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/4.0 multiverse" | 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 python
 RUN apt-get install -y python python3 python3-pip net-tools iputils-ping ntp
 
@@ -39,13 +46,6 @@ RUN apt-get install -y nginx
 RUN apt-get install -y redis-server
 RUN service redis-server start
 
-# install mongodb
-RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
-RUN echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/4.0 multiverse" | 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
-
 # python soft link
 RUN ln -s /usr/bin/pip3 /usr/local/bin/pip
 RUN ln -s /usr/bin/python3 /usr/local/bin/python