diff --git a/certbot-auth b/certbot-auth
index 2edc969..728a071 100755
--- a/certbot-auth
+++ b/certbot-auth
@@ -5,5 +5,5 @@ set -x
 baseurl='https://www.duckdns.org/update?domains=%s&token=%s&txt=%s'
 result="$(printf "url=$baseurl\n" "$DUCKDNS_DOMAIN" "$DUCKDNS_TOKEN" "$CERTBOT_VALIDATION" | curl -K -)"
 # give some time for the record to update
-sleep 120
+sleep 300
 test "$result" = 'OK'