diff --git a/docker-compose.yml b/docker-compose.yml
index ba2563c3..c4803430 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -241,7 +241,7 @@ services:
             - dovecot
 
     postfix-mailcow:
-      image: mailcow/postfix:1.44
+      image: mailcow/postfix:1.45
       depends_on:
         - mysql-mailcow
       volumes: