diff --git a/.buildbot/openwrt/Dockerfile b/.buildbot/openwrt/Dockerfile
index 72eec5a..0a86171 100644
--- a/.buildbot/openwrt/Dockerfile
+++ b/.buildbot/openwrt/Dockerfile
@@ -1,7 +1,9 @@
 FROM ubuntu:focal
 
 RUN apt -y update
-RUN apt -yq install \
+
+RUN DEBIAN_FRONTEND=noninteractive TZ=UTC \
+  apt -yq install \
   build-essential rsync git-core subversion mercurial libssl-dev \
   libncurses5-dev unzip  gawk zlib1g-dev libncursesw5-dev zlib1g-dev \
   gettext xsltproc wget unzip python