diff --git a/postfix/Dockerfile b/postfix/Dockerfile
index c069a83..4317a74 100644
--- a/postfix/Dockerfile
+++ b/postfix/Dockerfile
@@ -1,12 +1,14 @@
-FROM almalinux:8
+FROM almalinux:9
 
 RUN useradd -m -s /bin/false vmail
 
-RUN dnf install -y epel-release && dnf update -y \
+RUN dnf install -y epel-release dnf-plugins-core \
+  && dnf update -y \
+  && dnf config-manager --enable crb \
   && dnf clean all \
   && rm -rf /var/cache/yum
 
-RUN dnf install -y postfix-3.5.8 postfix-ldap-3.5.8 postfix-mysql-3.5.8 postfix-pgsql-3.5.8 \
+RUN dnf install -y postfix-3.5.9 postfix-ldap-3.5.9 postfix-mysql-3.5.9 postfix-pgsql-3.5.9 \
   dovecot-2.3.16 dovecot-pigeonhole-2.3.16 opendkim-2.11.0 opendmarc-1.4.2 \
   cyrus-sasl cyrus-sasl-plain cyrus-sasl-md5 pypolicyd-spf \
   && dnf clean all \
diff --git a/postfix/Makefile b/postfix/Makefile
index 085bd2f..e06d3a9 100644
--- a/postfix/Makefile
+++ b/postfix/Makefile
@@ -1,4 +1,4 @@
-VERSION=3.5.8-1
+VERSION=3.5.9-1
 IMAGE=postfix
 REGISTRY=gitea.geekhome.org/ghp