diff --git a/ops/nixos/howl/default.nix b/ops/nixos/howl/default.nix
index 89f1878290..3e76475bed 100644
--- a/ops/nixos/howl/default.nix
+++ b/ops/nixos/howl/default.nix
@@ -205,5 +205,5 @@ in {
   # compatible, in order to avoid breaking some software such as database
   # servers. You should change this only after NixOS release notes say you
   # should.
-  system.stateVersion = "21.05"; # Did you read the comment?
+  system.stateVersion = "23.11"; # Did you read the comment?
 }