diff --git a/data/Dockerfiles/dovecot/syslog-ng-redis_slave.conf b/data/Dockerfiles/dovecot/syslog-ng-redis_slave.conf
index f6905092..ea2bcfbf 100644
--- a/data/Dockerfiles/dovecot/syslog-ng-redis_slave.conf
+++ b/data/Dockerfiles/dovecot/syslog-ng-redis_slave.conf
@@ -1,4 +1,4 @@
-@version: 3.19
+@version: 3.28
 @include "scl.conf"
 options {
   chain_hostnames(off);