diff --git a/group_vars/all.yml b/group_vars/all.yml
index 1036635..134c5b0 100644
--- a/group_vars/all.yml
+++ b/group_vars/all.yml
@@ -17,9 +17,9 @@ user_mgmt_default:
   fritz:
     ssh_key:
       present:
-      - "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEay33koXmcBcrDuCQKkCBlw/gKiPtwLswATPqIR7udl fritz@fluorine.grimpen.net"
       - "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEyVVwh0cUPxZ/wwRsB8YRsQE/cxjEX6gomS7EPArXuX fritz@NaOH"
       - "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPSZUs/SgJRKK+NgmifBt8xehIbrpdQtpT9MeRkdwdHU fritz@m1air"
+      - 'cert-authority,principals="fritz@grimpen.net" ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGWi5Ouz5+5+olDRC09SpTW5YEjsMtbybd7dN7esnywA fritz@tungsten.grimpen.net'
       absent: []
   deelkar:
     ssh_key: