diff --git a/Dockerfile b/Dockerfile
index d125a878..b091769c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -33,10 +33,10 @@ RUN rm -r tests
 
 
 # FPM base
-FROM kimai/kimai-base:fpm as fpm-base
+FROM kimai/kimai-base:fpm AS fpm-base
 
 # Apache base
-FROM kimai/kimai-base:apache as apache-base
+FROM kimai/kimai-base:apache AS apache-base
 COPY .docker/000-default.conf /etc/apache2/sites-available/000-default.conf
 
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