diff --git a/nix/nixos-module/container/bird.nix b/nix/nixos-module/container/bird.nix
index 44863f8..0f340cf 100644
--- a/nix/nixos-module/container/bird.nix
+++ b/nix/nixos-module/container/bird.nix
@@ -46,8 +46,8 @@ in
             ${builtins.concatStringsSep "\n" (
               map (subnet6: ''
                 prefix ${subnet6} {
-                  preferred lifetime 20;
-                  valid lifetime 60;
+                  preferred lifetime 600;
+                  valid lifetime 1800;
                 };
               '') (builtins.attrValues config.site.net.${gatewayNet}.subnets6)
             )}