diff --git a/Dockerfile b/Dockerfile
index 0b75a4b..73c0b55 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM debian:wheezy
+FROM debian:buster
 MAINTAINER yohan <783b8c87@scimetis.net>
 ENV DEBIAN_FRONTEND noninteractive
-RUN echo "deb http://http.debian.net/debian wheezy-backports main" >> /etc/apt/sources.list
+RUN echo "deb http://http.debian.net/debian buster-backports main" >> /etc/apt/sources.list
 RUN apt-get update && apt-get -y install fetchmail
 #COPY fetchmailrc /etc/
 ENTRYPOINT ["/usr/bin/fetchmail", "-N", "-f", "/etc/fetchmailrc", "-d", "300"]