diff --git a/deployments/dns/externaldns.yaml b/deployments/dns/externaldns.yaml
index 523dab2..ed64c21 100644
--- a/deployments/dns/externaldns.yaml
+++ b/deployments/dns/externaldns.yaml
@@ -63,7 +63,6 @@ spec:
           - --rfc2136-tsig-secret=$(RFC2136_TSIG_SECRET)
           - --rfc2136-tsig-secret-alg=hmac-sha256
           - --rfc2136-tsig-keyname=externaldns-key
-          - --rfc2136-tsig-ttl=300
           - --policy=sync
           - --registry=txt
           - --txt-owner-id=my-cluster