diff --git a/Containers/mastercontainer/Dockerfile b/Containers/mastercontainer/Dockerfile
index bb91edcd..a3b455ab 100644
--- a/Containers/mastercontainer/Dockerfile
+++ b/Containers/mastercontainer/Dockerfile
@@ -1,4 +1,4 @@
-# From https://github.com/docker-library/php/blob/master/8.0/buster/apache/Dockerfile
+# From https://github.com/docker-library/php/blob/master/8.0/bullseye/apache/Dockerfile
 FROM php:8.0-apache-bullseye
 
 EXPOSE 80
diff --git a/Containers/postgresql/Dockerfile b/Containers/postgresql/Dockerfile
index c6ebce6a..18b398cd 100644
--- a/Containers/postgresql/Dockerfile
+++ b/Containers/postgresql/Dockerfile
@@ -1,5 +1,5 @@
-# From https://github.com/docker-library/postgres/blob/master/13/buster/Dockerfile
-FROM postgres:13-buster
+# From https://github.com/docker-library/postgres/blob/master/13/bullseye/Dockerfile
+FROM postgres:13-bullseye
 
 RUN set -ex; \
     \
diff --git a/Containers/redis/Dockerfile b/Containers/redis/Dockerfile
index 0ea8d81e..f7147156 100644
--- a/Containers/redis/Dockerfile
+++ b/Containers/redis/Dockerfile
@@ -1,5 +1,5 @@
 # From https://github.com/docker-library/redis/blob/master/6.2/Dockerfile
-FROM redis:6.2-buster
+FROM redis:6.2-bullseye
 
 RUN set -ex; \
     \