diff --git a/docker/Dockerfile_ubuntu_18.04 b/docker/Dockerfile_ubuntu_18.04
index 930f670a3d355e1aaa084c50e3fca6812332b0da..0da1160c62498031c3acc3d858913d1fc902006e 100644
--- a/docker/Dockerfile_ubuntu_18.04
+++ b/docker/Dockerfile_ubuntu_18.04
@@ -1,4 +1,4 @@
-FROM ubuntu:18.04
+FROM ubuntu:20.04
 MAINTAINER Dominique Benielli
 WORKDIR /
 ENV DEBIAN_FRONTEND noninteractive