diff --git a/config/service/biboumi/Containerfile b/config/service/biboumi/Containerfile
index 53a5590..e6bc413 100644
--- a/config/service/biboumi/Containerfile
+++ b/config/service/biboumi/Containerfile
@@ -1,4 +1,4 @@
-FROM docker.io/debian:stable-slim
+FROM docker.io/debian:bullseye-slim
 ARG VERSION=9.0
 
 ENV BUILD_DEPS="build-essential git cmake python"
diff --git a/config/service/discord-ircd/Containerfile b/config/service/discord-ircd/Containerfile
index c49a24f..92f5ed1 100644
--- a/config/service/discord-ircd/Containerfile
+++ b/config/service/discord-ircd/Containerfile
@@ -1,4 +1,4 @@
-FROM docker.io/debian:stable-slim
+FROM docker.io/debian:bullseye-slim
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     ca-certificates python3 python3-aiohttp gettext git
diff --git a/config/service/discord-ircd/container/config/rdircd.conf.template b/config/service/discord-ircd/container/config/rdircd.conf.template
index 0ad8ba7..0468bf8 100644
--- a/config/service/discord-ircd/container/config/rdircd.conf.template
+++ b/config/service/discord-ircd/container/config/rdircd.conf.template
@@ -1,4 +1,4 @@
-[auth-main]
+[auth]
 email = ${DISCORD_IRCD_AUTH_EMAIL}
 password = ${DISCORD_IRCD_AUTH_PASSWORD}
 token = ${DISCORD_IRCD_AUTH_TOKEN}
diff --git a/config/service/dovecot/Containerfile b/config/service/dovecot/Containerfile
index cfb16d8..3c7e109 100644
--- a/config/service/dovecot/Containerfile
+++ b/config/service/dovecot/Containerfile
@@ -1,5 +1,5 @@
-FROM docker.io/debian:stable-slim
-ARG VERSION=2.3.4
+FROM docker.io/debian:bullseye-slim
+ARG VERSION=2.3.13
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     dovecot-imapd=1:${VERSION}* dovecot-lmtpd=1:${VERSION}* dovecot-mysql=1:${VERSION}* \
diff --git a/config/service/git/Containerfile b/config/service/git/Containerfile
index dd5bf40..3020b06 100644
--- a/config/service/git/Containerfile
+++ b/config/service/git/Containerfile
@@ -1,4 +1,4 @@
-FROM docker.io/debian:stable-slim
+FROM docker.io/debian:bullseye-slim
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     ca-certificates git openssh-server
diff --git a/config/service/mariadb/Containerfile b/config/service/mariadb/Containerfile
index 04850ca..74c95fd 100644
--- a/config/service/mariadb/Containerfile
+++ b/config/service/mariadb/Containerfile
@@ -1,2 +1,2 @@
-FROM docker.io/mariadb:10.5
+FROM docker.io/mariadb:10.6
 USER mysql
diff --git a/config/service/postfix/Containerfile b/config/service/postfix/Containerfile
index 09c1646..48fd140 100644
--- a/config/service/postfix/Containerfile
+++ b/config/service/postfix/Containerfile
@@ -1,5 +1,5 @@
-FROM docker.io/debian:stable-slim
-ARG VERSION=3.4.14
+FROM docker.io/debian:bullseye-slim
+ARG VERSION=3.5.6
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     postfix=${VERSION}* postfix-mysql=${VERSION}* syslog-ng-core gettext ca-certificates
diff --git a/config/service/prosody/Containerfile b/config/service/prosody/Containerfile
index 3e882bc..841f6d4 100644
--- a/config/service/prosody/Containerfile
+++ b/config/service/prosody/Containerfile
@@ -1,11 +1,11 @@
-FROM docker.io/debian:stable-slim
+FROM docker.io/debian:bullseye-slim
 ARG VERSION=0.11.10
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     curl mercurial gnupg ca-certificates apt-transport-https
 
-RUN echo "deb https://packages.prosody.im/debian stable main" > /etc/apt/sources.list.d/prosody.list && \
-    echo "deb-src https://packages.prosody.im/debian stable main" >> /etc/apt/sources.list.d/prosody.list && \
+RUN echo "deb https://packages.prosody.im/debian bullseye main" > /etc/apt/sources.list.d/prosody.list && \
+    echo "deb-src https://packages.prosody.im/debian bullseye main" >> /etc/apt/sources.list.d/prosody.list && \
     curl -o - https://prosody.im/files/prosody-debian-packages.key | apt-key add - && \
     apt-get update -y && apt-get install -y --no-install-recommends \
     lua-dbi-mysql lua-event lua-zlib lua-sec lua-bitop prosody=${VERSION}*
diff --git a/config/service/radicale/Containerfile b/config/service/radicale/Containerfile
index 15db33d..8b78fbb 100644
--- a/config/service/radicale/Containerfile
+++ b/config/service/radicale/Containerfile
@@ -1,4 +1,4 @@
-FROM docker.io/debian:stable-slim
+FROM docker.io/debian:bullseye-slim
 ARG VERSION=3.0.6
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
diff --git a/config/service/rspamd/Containerfile b/config/service/rspamd/Containerfile
index 51ea25c..5ba6b3e 100644
--- a/config/service/rspamd/Containerfile
+++ b/config/service/rspamd/Containerfile
@@ -1,11 +1,11 @@
-FROM docker.io/debian:stable-slim
-ARG VERSION=2.7
+FROM docker.io/debian:bullseye-slim
+ARG VERSION=3.0
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     ca-certificates curl gnupg
 
-RUN echo "deb https://rspamd.com/apt-stable/ buster main" > /etc/apt/sources.list.d/rspamd.list && \
-    echo "deb-src https://rspamd.com/apt-stable/ buster main" >> /etc/apt/sources.list.d/rspamd.list && \
+RUN echo "deb https://rspamd.com/apt-stable/ bullseye main" > /etc/apt/sources.list.d/rspamd.list && \
+    echo "deb-src https://rspamd.com/apt-stable/ bullseye main" >> /etc/apt/sources.list.d/rspamd.list && \
     curl -o - https://rspamd.com/apt-stable/gpg.key | apt-key add - && \
     apt-get update && apt-get install -y --no-install-recommends rspamd="${VERSION}*"
 
diff --git a/config/service/spectrum/Containerfile b/config/service/spectrum/Containerfile
index b1e4619..73f1029 100644
--- a/config/service/spectrum/Containerfile
+++ b/config/service/spectrum/Containerfile
@@ -1,4 +1,4 @@
-FROM docker.io/debian:stable-slim
+FROM docker.io/debian:buster-slim
 ARG VERSION=2.0.13
 
 ENV BUILD_DEPS="curl gnupg apt-transport-https build-essential git libpurple-dev libglib2.0-dev libjson-glib-dev libhttp-parser-dev graphicsmagick-imagemagick-compat"