diff --git a/Dockerfile-php b/Dockerfile-php
index bfd40fb..3208968 100644
--- a/Dockerfile-php
+++ b/Dockerfile-php
@@ -3,11 +3,11 @@ FROM debian:bookworm-slim
 ARG PHP_VERSION=7.4
 ARG WKHTML=""
 
-RUN apt-get update
+RUN apt-get update -y
 RUN apt-get upgrade -y
 
 # persistent / runtime deps
-RUN apt-get install -y --no-install-recommends ca-certificates curl apt-transport-https lsb-release
+RUN apt-get install -y --no-install-recommends ca-certificates curl apt-transport-https lsb-release imagemagick
 
 RUN set -eux; [ ! -d /var/www/html ]; mkdir -p /var/www/html; chown www-data:www-data /var/www/html; chmod 1777 /var/www/html
 
@@ -77,12 +77,19 @@ RUN ln -s /etc/php/${PHP_VERSION}/apache2/conf.d /etc/php/conf.d
 # apache site and modules
 COPY apache/site.conf /etc/apache2/sites-available/site.conf
 RUN echo "ServerName localhost" >> /etc/apache2/apache2.conf
+
+RUN a2dismod mpm_event
 RUN a2dissite 000-default
-RUN a2dismod mpm_event && a2enmod mpm_prefork # Apache + PHP requires preforking Apache for best results
+
+RUN a2enmod mpm_prefork # Apache + PHP requires pre-forking Apache for best results
 RUN a2enmod rewrite
 RUN a2enmod remoteip
+RUN a2enmod setenvif
 RUN a2ensite site
 
+# upgrade system a second time
+RUN apt-get upgrade -y
+
 # email relay
 RUN apt-get install -y --no-install-recommends msmtp msmtp-mta