diff --git a/Dockerfile b/Dockerfile
index bb7cc79..00b7816 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 FROM ubuntu:20.04
 
 # install and configure munin
+# hadolint ignore=DL3008
 RUN apt-get update -qq \
     && RUNLEVEL=1 \
     DEBIAN_FRONTEND=noninteractive \