diff --git a/docker-compose.yml b/docker-compose.yml
index 32ae8ac9..359755cf 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -169,7 +169,7 @@ services:
             - sogo
 
     dovecot-mailcow:
-      image: mailcow/dovecot:1.29
+      image: mailcow/dovecot:1.30
       build: ./data/Dockerfiles/dovecot
       cap_add:
         - NET_BIND_SERVICE
@@ -185,6 +185,7 @@ services:
         - DBNAME=${DBNAME}
         - DBUSER=${DBUSER}
         - DBPASS=${DBPASS}
+        - ADDITIONAL_HASH_SCHEME=${ADDITIONAL_HASH_SCHEME:-SHA512-CRYPT}
         - TZ=${TZ}
       ports:
         - "${DOVEADM_PORT:-127.0.0.1:19991}:12345"