diff --git a/docker/kolab/Dockerfile b/docker/kolab/Dockerfile
index 1fe48269..d6902696 100644
--- a/docker/kolab/Dockerfile
+++ b/docker/kolab/Dockerfile
@@ -1,75 +1,74 @@
 FROM centos:7
 
 LABEL maintainer="contact@kolabsystems.com"
 LABEL dist=centos7
 LABEL tier=${TIER}
 
 ENV container docker
 ENV SYSTEMD_PAGER=''
 ENV DISTRO=centos7
 ENV LANG=en_US.utf8
 ENV LC_ALL=en_US.utf8
 
 RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
     rm -f /lib/systemd/system/multi-user.target.wants/*; \
     rm -f /etc/systemd/system/*.wants/*; \
     rm -f /lib/systemd/system/local-fs.target.wants/*; \
     rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
     rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
     rm -f /lib/systemd/system/basic.target.wants/*; \
     rm -f /lib/systemd/system/anaconda.target.wants/*;
 
 # To speed things up, disable fastestmirror.
 RUN sed -r -i \
         -e 's/^enabled.*$/enabled = 0/g' \
         /etc/yum/pluginconf.d/fastestmirror.conf
 
 # Avoid using a mirrorlist (use a transparent proxy and cache everything instead).
 RUN sed -r -i \
         -e 's/^mirrorlist/#mirrorlist/g' \
         -e 's/^#baseurl/baseurl/g' \
         /etc/yum.repos.d/*.repo
 
 RUN sed -i -e '/tsflags=nodocs/d' /etc/yum.conf
 
 # Add EPEL.
 RUN yum -y install \
         epel-release && \
     yum clean all
 
 # Add the EPEL key.
 RUN rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
 
 RUN rpm --import https://mirror.kolabenterprise.com/maipo.asc
 
 RUN yum -y install https://mirror.kolabenterprise.com/kolab-16-for-el7.rpm && \
+    yum -y install kolab-16-release-development && \
         yum clean all
 
-RUN sed -i -e '/^ssl/d' /etc/yum.repos.d/kolab*.repo
-
 RUN yum -y --setopt tsflags= install kolab
 
 COPY kolab-init.service /etc/systemd/system/kolab-init.service
 COPY kolab-vlv.service /etc/systemd/system/kolab-vlv.service
 COPY utils /root/utils
 
 RUN rm -rf /etc/systemd/system/multi-user.target.wants/{avahi-daemon,sshd}.* && \
     ln -s /etc/systemd/system/kolab-init.service \
         /etc/systemd/system/multi-user.target.wants/kolab-init.service && \
     ln -s /etc/systemd/system/kolab-vlv.service \
         /etc/systemd/system/multi-user.target.wants/kolab-vlv.service
 
 RUN sed -i -r -e 's/^SELINUX=.*$/SELINUX=permissive/g' /etc/selinux/config 2>/dev/null || :
 
 COPY kolab-init.sh /usr/local/sbin/
 RUN chmod 750 /usr/local/sbin/kolab-init.sh
 COPY kolab-vlv.sh /usr/local/sbin/
 RUN chmod 750 /usr/local/sbin/kolab-vlv.sh
 
 VOLUME [ "/sys/fs/cgroup" ]
 
 WORKDIR /root/
 
 CMD ["/lib/systemd/systemd"]
 
 EXPOSE 21/tcp 22/tcp 25/tcp 53/tcp 53/udp 80/tcp 110/tcp 143/tcp 389/tcp 443/tcp 465/tcp 587/tcp 993/tcp 995/tcp 5353/udp 8880/tcp 8443/tcp 8447/tcp