diff --git a/docker/sympa/Dockerfile b/docker/sympa/Dockerfile
index 84d0415bf7367915c1350675dff56d809a485e52..a628337c2a367f121321fe13c36b97908200a41c 100644
--- a/docker/sympa/Dockerfile
+++ b/docker/sympa/Dockerfile
@@ -8,6 +8,8 @@ RUN apt-get -y update && apt-get -y upgrade && apt-get -y install \
 	libapache2-mod-fcgid \
 	libdbd-pg-perl \
 	libfcgi-perl \
+	libnet-ldap-perl \
+	libio-socket-ssl-perl \
 	nullmailer \
 	openssh-server \
 	spawn-fcgi \