diff --git a/data/Dockerfiles/dovecot/docker-entrypoint.sh b/data/Dockerfiles/dovecot/docker-entrypoint.sh
index 9ac2dc64..ac7aeb1d 100755
--- a/data/Dockerfiles/dovecot/docker-entrypoint.sh
+++ b/data/Dockerfiles/dovecot/docker-entrypoint.sh
@@ -349,6 +349,14 @@ sievec /var/vmail/sieve/global_sieve_after.sieve
 sievec /usr/lib/dovecot/sieve/report-spam.sieve
 sievec /usr/lib/dovecot/sieve/report-ham.sieve
 
+for file in /var/vmail/*/*/sieve/*.sieve ; do
+  if [[ "$file" == "/var/vmail/*/*/sieve/*.sieve" ]]; then
+    continue
+  fi
+  sievec "$file" "$(dirname "$file")/../.dovecot.svbin"
+  chown vmail:vmail "$(dirname "$file")/../.dovecot.svbin"
+done
+
 # Fix permissions
 chown root:root /etc/dovecot/sql/*.conf
 chown root:dovecot /etc/dovecot/sql/dovecot-dict-sql-sieve* /etc/dovecot/sql/dovecot-dict-sql-quota* /etc/dovecot/lua/passwd-verify.lua
diff --git a/data/conf/dovecot/dovecot.conf b/data/conf/dovecot/dovecot.conf
index b7aca757..33a6e409 100644
--- a/data/conf/dovecot/dovecot.conf
+++ b/data/conf/dovecot/dovecot.conf
@@ -194,7 +194,6 @@ plugin {
   fts_solr = url=http://solr:8983/solr/dovecot-fts/
   quota = dict:Userquota::proxy::sqlquota
   quota_rule2 = Trash:storage=+100%%
-  sieve = /var/vmail/sieve/%u.sieve
   sieve_plugins = sieve_imapsieve sieve_extprograms
   sieve_vacation_send_from_recipient = yes
   sieve_redirect_envelope_from = recipient
diff --git a/docker-compose.yml b/docker-compose.yml
index 91266e00..9d5f9473 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -215,7 +215,7 @@ services:
             - sogo
 
     dovecot-mailcow:
-      image: mailcow/dovecot:1.17
+      image: mailcow/dovecot:1.18
       depends_on:
         - mysql-mailcow
       dns: