diff --git a/ansible/inventory.yml b/ansible/inventory.yml
index 0664596..1e97476 100644
--- a/ansible/inventory.yml
+++ b/ansible/inventory.yml
@@ -8,8 +8,10 @@ pi:
       ntp_servers:
       - ntp-s2-cra.lan.k3s.fr
       - ntp-s2-ces.lan.k3s.fr
+
       - ntp11.metas.ch
-      - tock.zg.ch
+
+      - time1.uni-stuttgart.de
       - tick.ntp.infomaniak.ch
 vms:
   hosts:
@@ -21,11 +23,13 @@ vms:
       ntp_servers:
       - chronos.lan.k3s.fr
       - ntp-s2-ces.lan.k3s.fr
+
       - ntp12.metas.ch
       - ntp-p1.obspm.fr
-      - ntp-s2-1.itu.ch
+
+      - ntp4.bit.nl
       - ntp02.gyptazy.ch
-      - falseticker.ntp.infomaniak.ch
+      - ntp2.tp.pl
 
     ntp-s2-ces.lan.k3s.fr:
       bgp_router_ipv6: 2a0e:e701:122c:42::1
@@ -35,9 +39,12 @@ vms:
       ntp_servers:
       - chronos.lan.k3s.fr
       - ntp-s2-cra.lan.k3s.fr
-      - ntp13.metas.ch
-      - time.esa.int
-      - ntp.sceen.net
-      - g0.pub.gps.s1.ntp.faelix.net
-      - tock.ntp.infomaniak.ch
+
+      - ntp13.metas.ch
+      - tock.espanix.net
+
+      - tock.ntp.infomaniak.ch
+      - ntp1.home4u.ch
+      - ntp2.litnet.lt
+