diff --git a/hosts/remilia/mailserver.nix b/hosts/remilia/mailserver.nix
index 2d5b980..ac4ef3d 100644
--- a/hosts/remilia/mailserver.nix
+++ b/hosts/remilia/mailserver.nix
@@ -12,7 +12,7 @@
     in
     rec {
       enable = true;
-      stateVersion = 1;
+      stateVersion = 3;
       fqdn = "mail.${domain}";
       sendingFqdn = fqdn;
       domains = [ domain ];