diff --git a/Dockerfile b/Dockerfile
index 422cd73..821fdb1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,10 @@
-FROM quay.io/perl/base-os:v3.2
+FROM quay.io/perl/base-os:v3.3
 USER root
 WORKDIR /web
 VOLUME /git
 VOLUME /web/config
-RUN apk update; apk add apache2 apache2-utils apache2-proxy apache2-ssl
+RUN apk --no-cache upgrade
+RUN apk --no-cache add apache2 apache2-utils apache2-proxy apache2-ssl
 RUN mkdir /run/apache2; chown apache /run/apache2
 RUN mv /etc/apache2/conf.d/proxy.conf /etc/apache2/conf.d/proxy.conf.disabled
 RUN ln -s /dev/stderr /var/log/apache2/error.log