diff --git a/webmails/Dockerfile b/webmails/Dockerfile
index 95d4a374..9e47af0e 100644
--- a/webmails/Dockerfile
+++ b/webmails/Dockerfile
@@ -28,8 +28,8 @@ RUN set -euxo pipefail \
   ; mkdir -p /run/nginx /conf
 
 # roundcube
-ENV ROUNDCUBE_URL https://github.com/roundcube/roundcubemail/releases/download/1.6.9/roundcubemail-1.6.9-complete.tar.gz
-ENV CARDDAV_URL https://github.com/mstilkerich/rcmcarddav/releases/download/v5.1.0/carddav-v5.1.0.tar.gz
+ENV ROUNDCUBE_URL https://github.com/roundcube/roundcubemail/releases/download/1.6.11/roundcubemail-1.6.11-complete.tar.gz
+ENV CARDDAV_URL https://github.com/mstilkerich/rcmcarddav/releases/download/v5.1.1/carddav-v5.1.1.tar.gz
 
 RUN set -euxo pipefail \
   ; cd /var/www \