diff --git a/Dockerfile b/Dockerfile
index 1d3138a..def4ddc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM debian:jessie
+FROM debian:bookworm
 MAINTAINER yohan <783b8c87@scimetis.net>
 ENV DEBIAN_FRONTEND noninteractive
-#RUN echo "deb http://http.debian.net/debian jessie-backports main" >> /etc/apt/sources.list
+ENV TZ Europe/Paris
 RUN apt-get update && apt-get -y install dovecot-core dovecot-imapd dovecot-managesieved dovecot-sieve dovecot-solr dovecot-antispam dovecot-lmtpd
 # IMAPS
 EXPOSE 993