diff --git a/env-example b/env-example
index 64936c70..fb8b5b0d 100644
--- a/env-example
+++ b/env-example
@@ -2,6 +2,11 @@
 # General Setup
 ###########################################################
 
+### Environment ########################################################################################################
+# If you're in China, or you need to change sources, will be set CHANGE_SOURCE to true in .env.
+
+CHANGE_SOURCE=false
+
 ### Docker compose files ###############################################################################################
 # Select which docker-compose files to include.
 
diff --git a/nginx/Dockerfile b/nginx/Dockerfile
index 4a491b02..7fe29820 100644
--- a/nginx/Dockerfile
+++ b/nginx/Dockerfile
@@ -4,14 +4,22 @@ MAINTAINER Mahmoud Zalt <mahmoud@zalt.me>
 
 ADD nginx.conf /etc/nginx/
 
-ARG PHP_UPSTREAM_CONTAINER=php-fpm
-ARG PHP_UPSTREAM_PORT=9000
+# If you're in China, or you need to change sources, will be set CHANGE_SOURCE to true in .env.
+
+ARG CHANGE_SOURCE=false
+RUN if [ ${CHANGE_SOURCE} = true ]; then \
+    # Change application source from dl-cdn.alpinelinux.org to aliyun source
+    RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/' /etc/apk/repositories
+;fi
 
 RUN apk update \
     && apk upgrade \
     && apk add --no-cache bash \
     && adduser -D -H -u 1000 -s /bin/bash www-data
 
+ARG PHP_UPSTREAM_CONTAINER=php-fpm
+ARG PHP_UPSTREAM_PORT=9000
+
 # Set upstream conf and remove the default conf
 RUN echo "upstream php-upstream { server ${PHP_UPSTREAM_CONTAINER}:${PHP_UPSTREAM_PORT}; }" > /etc/nginx/conf.d/upstream.conf \
     && rm /etc/nginx/conf.d/default.conf