diff --git a/distillery/resources/compose/barrel/Dockerfile b/distillery/resources/compose/barrel/Dockerfile
index b6b8216..4b4a125 100644
--- a/distillery/resources/compose/barrel/Dockerfile
+++ b/distillery/resources/compose/barrel/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7-apache-buster
+FROM docker.io/library/php:7.4-apache-bullseye
 WORKDIR /var/www
 
 # install and enable the various required php extension