diff --git a/Dockerfile b/Dockerfile
index 59e996d..11615d6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 FROM "ubuntu:18.04"
-MAINTAINER "Julien Cabillot <dockerimages@cabillot.eu>"
+LABEL maintainer="Julien Cabillot <dockerimages@cabillot.eu>"
 
 RUN apt-get -qq update && \
     apt-get -qq --yes install ruby ruby-dev libxml2-dev && \