diff --git a/Dockerfile b/Dockerfile
index 2d1947b..19e1bf6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,19 +1,21 @@
-FROM alpine:3.13.1 AS build
+FROM alpine:3.13.2 AS build
 ENV EMAIL monit@sutty.nl
 
 RUN apk add --no-cache tzdata
 
-FROM alpine:3.13.1
-MAINTAINER "f <f@sutty.nl>"
 COPY ./monitrc /etc/monitrc
 RUN chmod 600 /etc/monitrc
 RUN sed -re "s/@@EMAIL@@/${EMAIL}/" -i /etc/monitrc
 
+FROM alpine:3.13.2
+MAINTAINER "f <f@sutty.nl>"
+
 # TODO: We don't want to receive lots of email, so we'll change this to
 # a pingy instance that will also work as a status site.
 ENV EMAIL monit@sutty.nl
 
 # Install monit and remove default config
+RUN apk upgrade --no-cache
 RUN apk add --no-cache tini monit
 COPY --from=build /usr/share/zoneinfo/UTC /etc/localtime