diff --git a/install/tpl/server.ini.master b/install/tpl/server.ini.master
index 39f8276cf1a757fd73b5b1207c558008d8172cdf..32e5efc98a90cdcbdef4d30b94ca5b1b256ca673 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=
 rspamd_redis_servers=127.0.0.1