diff --git a/Dockerfile b/Dockerfile
index 470b5ae4..e5aca300 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,16 +25,9 @@ RUN apt-get update \
 RUN 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" | tee /etc/apt/sources.list.d/mongodb-org-4.0.list \
 	&& apt-get update \
-	&& apt-get install -y mongodb-org
-RUN mongod >> /var/log/mongod.log 2>&1 &
-
-# install python
-#RUN git clone git://github.com/yyuu/pyenv.git ~/.pyenv
-#ENV PYENV_ROOT "$HOME/.pyenv"
-#ENV PATH "$PYENV_ROOT/bin:$PATH"
-#RUN eval "$(pyenv init -)"
-#RUN pyenv install 3.6.8
-#RUN pyenv local 3.6.8
+	&& apt-get install -y mongodb-org \
+	&& mkdir -p /data/db \
+	&& mongod --fork --logpath /var/log/mongod.log
 
 # install nvm
 RUN curl https://raw.githubusercontent.com/creationix/nvm/v0.24.0/install.sh | bash \  
@@ -54,7 +47,6 @@ RUN npm install -g yarn pm2 --registry=https://registry.npm.taobao.org \
 RUN pip install -U setuptools -i https://pypi.tuna.tsinghua.edu.cn/simple \
 	&& pip install -r /opt/crawlab/crawlab/requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
 
-
 # start backend
 EXPOSE 8080
 EXPOSE 8000