diff --git a/docker/Dockerfile b/docker/Dockerfile
index 524cb6129..2ea92f6c0 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -25,7 +25,7 @@ VOLUME /var/roundcube/config
 VOLUME /tmp/roundcube-temp
 
 # Define Roundcubemail version
-ENV ROUNDCUBEMAIL_VERSION 1.3.3
+ENV ROUNDCUBEMAIL_VERSION 1.3.4
 
 # Download package and extract to web volume
 RUN curl -o roundcubemail.tar.gz -SL https://github.com/roundcube/roundcubemail/releases/download/${ROUNDCUBEMAIL_VERSION}/roundcubemail-${ROUNDCUBEMAIL_VERSION}-complete.tar.gz \
diff --git a/docker/docker-entrypoint.sh b/docker/docker-entrypoint.sh
index a7d52946b..f18f74ad3 100755
--- a/docker/docker-entrypoint.sh
+++ b/docker/docker-entrypoint.sh
@@ -73,6 +73,7 @@ if [[ "$1" == apache2* ]] || [ "$1" == php-fpm ]; then
     \$config['log_dir'] = '${ROUNDCUBEMAIL_LOG_DIR}';
     \$config['temp_dir'] = '${ROUNDCUBEMAIL_TEMP_DIR}';
     \$config['plugins'] = ['${ROUNDCUBEMAIL_PLUGINS_PHP}'];
+    \$config['zipdownload_selection'] = true;
     " > config/config.inc.php
 
     for fn in `ls /var/roundcube/config/*.php`; do