diff --git a/chrony.conf b/chrony.conf
index 0da1195..ff07659 100644
--- a/chrony.conf
+++ b/chrony.conf
@@ -5,7 +5,7 @@ server ptbtime1.ptb.de iburst nts
 server time.dfm.dk iburst nts
 server time.cifelli.xyz iburst nts
 
-minsources 2
+minsources 3
 authselectmode require
 
 # EF