diff --git a/clusters/kairos/samba-server/configmap.yaml b/clusters/kairos/samba-server/configmap.yaml
index 63a0573..bf7ad2d 100644
--- a/clusters/kairos/samba-server/configmap.yaml
+++ b/clusters/kairos/samba-server/configmap.yaml
@@ -7,7 +7,7 @@ data:
   SAMBA_CONF_LOG_LEVEL: "2"
   ACCOUNT_samba: samba
   GROUPS_samba: samba
-  SAMBA_GLOBAL_STANZA: "map to guest = Bad User;guest account = samba;wins support = yes;load printers = no;"
+  SAMBA_GLOBAL_STANZA: "map to guest = Bad User;guest account = samba;wins support = yes;load printers = no;protocol = SMB3"
   SAMBA_VOLUME_CONFIG_share: |
     [share]
       path = /shares/data