diff --git a/data/Dockerfiles/postfix-tlspol/Dockerfile b/data/Dockerfiles/postfix-tlspol/Dockerfile
index 68f6ecced..fa363845f 100644
--- a/data/Dockerfiles/postfix-tlspol/Dockerfile
+++ b/data/Dockerfiles/postfix-tlspol/Dockerfile
@@ -1,17 +1,17 @@
-FROM golang:1.25-bookworm AS builder
+FROM golang:1.26-trixie AS builder
 WORKDIR /src
 
 ENV CGO_ENABLED=0 \
     GO111MODULE=on \
 		NOOPT=1 \
-    VERSION=1.8.22
+    VERSION=1.11.0
 
 RUN git clone --branch v${VERSION} https://github.com/Zuplu/postfix-tlspol && \
     cd /src/postfix-tlspol && \
     scripts/build.sh build-only
 
 
-FROM debian:bookworm-slim
+FROM debian:trixie-slim
 LABEL maintainer="The Infrastructure Company GmbH <info@servercow.de>"
 
 ARG DEBIAN_FRONTEND=noninteractive
diff --git a/data/Dockerfiles/postfix-tlspol/syslog-ng-redis_slave.conf b/data/Dockerfiles/postfix-tlspol/syslog-ng-redis_slave.conf
index 3862a3547..022dfc3da 100644
--- a/data/Dockerfiles/postfix-tlspol/syslog-ng-redis_slave.conf
+++ b/data/Dockerfiles/postfix-tlspol/syslog-ng-redis_slave.conf
@@ -1,4 +1,4 @@
-@version: 3.38
+@version: 4.8
 @include "scl.conf"
 options {
   chain_hostnames(off);
@@ -7,7 +7,7 @@ options {
   dns_cache(no);
   use_fqdn(no);
   owner("root"); group("adm"); perm(0640);
-  stats_freq(0);
+  stats(freq(0));
   bad_hostname("^gconfd$");
 };
 source s_src {
diff --git a/data/Dockerfiles/postfix-tlspol/syslog-ng.conf b/data/Dockerfiles/postfix-tlspol/syslog-ng.conf
index 7126c1250..70c92b5c0 100644
--- a/data/Dockerfiles/postfix-tlspol/syslog-ng.conf
+++ b/data/Dockerfiles/postfix-tlspol/syslog-ng.conf
@@ -1,4 +1,4 @@
-@version: 3.38
+@version: 4.8
 @include "scl.conf"
 options {
   chain_hostnames(off);
@@ -7,7 +7,7 @@ options {
   dns_cache(no);
   use_fqdn(no);
   owner("root"); group("adm"); perm(0640);
-  stats_freq(0);
+  stats(freq(0));
   bad_hostname("^gconfd$");
 };
 source s_src {
diff --git a/docker-compose.yml b/docker-compose.yml
index 30a7ba96b..b3cb8bef6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -382,7 +382,7 @@ services:
             - postfix
 
     postfix-tlspol-mailcow:
-      image: ghcr.io/mailcow/postfix-tlspol:1.8.23
+      image: ghcr.io/mailcow/postfix-tlspol:1.11.0
       depends_on:
         unbound-mailcow:
           condition: service_healthy