diff --git a/Dockerfile b/Dockerfile
index 34b2ab6..d73da68 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,9 @@
 FROM ubuntu:18.04
 LABEL maintainer="Stefan Verhoeven <s.verhoeven@esciencecenter.nl>"
 
+RUN sed -i 's/archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
+RUN sed -i 's/security.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
+
 # Configuring locales
 ENV DEBIAN_FRONTEND noninteractive
 RUN apt-get update && apt-get install -y -q apt-utils software-properties-common locales && dpkg-reconfigure locales && \
@@ -13,11 +16,8 @@ ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US:en
 ENV LC_ALL en_US.UTF-8
 
-ADD ./sources.list /etc/apt/sources.list
-
-
 RUN useradd -m -d /home/cartodb -s /bin/bash cartodb && \
-  apt-get update && apt-get install -y -q \
+  apt-get install -y -q \
     build-essential \
     autoconf \
     automake \