diff --git a/composer.lock b/composer.lock
index 14ce6bba..bbfe2827 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e8e7674e76d62f5cfd913e3bb715eec2",
+    "content-hash": "5a09e82c87504e904337a4fc8a80e3a8",
     "packages": [
         {
             "name": "algo26-matthias/idna-convert",
@@ -2988,7 +2988,7 @@
         "ext-openssl": "*"
     },
     "platform-dev": {
-        "php": ">=7.0",
+        "php": ">=7.1",
         "ext-pcntl": "*"
     }
 }
diff --git a/lib/Froxlor/Dns/Dns.php b/lib/Froxlor/Dns/Dns.php
index b5fc61d8..cfc77e93 100644
--- a/lib/Froxlor/Dns/Dns.php
+++ b/lib/Froxlor/Dns/Dns.php
@@ -304,7 +304,7 @@ class Dns
 			$soa_content = $primary_ns . " " . self::escapeSoaAdminMail(Settings::Get('panel.adminmail')) . " ";
 			$soa_content .= $domain['bindserial'] . " ";
 			// TODO for now, dummy time-periods
-			$soa_content .= "3600 900 604800 1200";
+			$soa_content .= "3600 900 604800 " . (int) Settings::Get('system.defaultttl');
 
 			$soa_record = new DnsEntry('@', 'SOA', $soa_content);
 			array_unshift($zonerecords, $soa_record);