diff --git a/install/tpl/server.ini.master b/install/tpl/server.ini.master
index 028fb68a6bf01b7eaaf2a9b4913ec0227e2e490d..1fbadd8287d812e1aade6939b05eafb0710ac445 100644
--- a/install/tpl/server.ini.master
+++ b/install/tpl/server.ini.master
@@ -37,7 +37,7 @@ maildir_path=/var/vmail/[domain]/[localpart]
 homedir_path=/var/vmail
 maildir_format=maildir
 dkim_path=/var/lib/amavis/dkim
-dkim_strength=1024
+dkim_strength=2048
 content_filter=amavis
 rspamd_password=
 pop3_imap_daemon=courier