diff --git a/docker-mailserver/docker-compose.yml b/docker-mailserver/docker-compose.yml
index fb0a14f..58af9a3 100644
--- a/docker-mailserver/docker-compose.yml
+++ b/docker-mailserver/docker-compose.yml
@@ -2,7 +2,7 @@ version: "3.8"
 
 services:
   mail:
-    image: docker.io/mailserver/docker-mailserver:10.4
+    image: docker.io/mailserver/docker-mailserver:10.5
     hostname: mail
     domainname: zweili.org
     env_file: mailserver.env