diff --git a/hosts/by-name/servo/services/kiwix-serve.nix b/hosts/by-name/servo/services/kiwix-serve.nix
index 214d263d..8eb5ee03 100644
--- a/hosts/by-name/servo/services/kiwix-serve.nix
+++ b/hosts/by-name/servo/services/kiwix-serve.nix
@@ -1,9 +1,15 @@
+# how to update wikipedia snapshot:
+# - browse for later snapshots:
+#   - <https://mirror.accum.se/mirror/wikimedia.org/other/kiwix/zim/wikipedia>
+# - DL directly, or via rsync (resumable):
+#   - `rsync --progress --append-verify rsync://mirror.accum.se/mirror/wikimedia.org/other/kiwix/zim/wikipedia/wikipedia_en_all_maxi_2022-05.zim .`
+
 { ... }:
 {
   sane.services.kiwix-serve = {
     enable = true;
     port = 8013;
-    zimPaths = [ "/var/lib/uninsane/www-archive/wikipedia_en_all_maxi_2022-05.zim" ];
+    zimPaths = [ "/var/lib/uninsane/www-archive/wikipedia_en_all_maxi_2023-11.zim" ];
   };
 
   services.nginx.virtualHosts."w.uninsane.org" = {