diff --git a/docker/NG-UI/Dockerfile b/docker/NG-UI/Dockerfile
index 53ec2a9..8350034 100644
--- a/docker/NG-UI/Dockerfile
+++ b/docker/NG-UI/Dockerfile
@@ -1,4 +1,5 @@
-# Copyright 2020 ETSI
+#######################################################################################
+# Copyright ETSI Contributors and Others.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -12,9 +13,16 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+#######################################################################################
 
 FROM ubuntu:18.04 AS BUILD
 
+ARG APT_PROXY
+RUN if [ ! -z $APT_PROXY ] ; then \
+    echo "Acquire::http::Proxy \"$APT_PROXY\";" > /etc/apt/apt.conf.d/proxy.conf ;\
+    echo "Acquire::https::Proxy \"$APT_PROXY\";" >> /etc/apt/apt.conf.d/proxy.conf ;\
+    fi
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
     DEBIAN_FRONTEND=noninteractive apt-get --yes install \
     apt-transport-https=1.6.* \