diff --git a/pvv-domain.nix b/pvv-domain.nix
index 1a67f1b..80f48a3 100644
--- a/pvv-domain.nix
+++ b/pvv-domain.nix
@@ -12,6 +12,8 @@ in
 {
   useOrigin = true; # Don't output fully qualified names
 
+  TTL = 60 * 60;
+
   SOA = {
     nameServer = "dvask.pvv.ntnu.no.";
     adminEmail = "drift@pvv.ntnu.no";
diff --git a/zones/nuccc.org.nix b/zones/nuccc.org.nix
index 2b7cd9c..8ac4569 100644
--- a/zones/nuccc.org.nix
+++ b/zones/nuccc.org.nix
@@ -4,6 +4,8 @@ with dns.lib.combinators;
 {
   useOrigin = true; # Don't output fully qualified names
 
+  TTL = 60 * 60;
+
   SOA = {
     nameServer = "dvask.pvv.ntnu.no";
     adminEmail = "drift@pvv.ntnu.no";
diff --git a/zones/reverse-ipv4.nix b/zones/reverse-ipv4.nix
index 65148a9..3a90552 100644
--- a/zones/reverse-ipv4.nix
+++ b/zones/reverse-ipv4.nix
@@ -28,6 +28,8 @@ in
 {
   useOrigin = true; # Don't output fully qualified names
 
+  TTL = 60 * 60;
+
   SOA = {
     nameServer = "dvask.pvv.ntnu.no";
     adminEmail = "drift@pvv.ntnu.no";
diff --git a/zones/reverse-ipv6.nix b/zones/reverse-ipv6.nix
index 193d206..7862b02 100644
--- a/zones/reverse-ipv6.nix
+++ b/zones/reverse-ipv6.nix
@@ -65,6 +65,8 @@ in
 {
   useOrigin = true; # Don't output fully qualified names
 
+  TTL = 60 * 60;
+
   SOA = {
     nameServer = "dvask.pvv.ntnu.no";
     adminEmail = "drift@pvv.ntnu.no";