diff --git a/flake.lock b/flake.lock
index 3bdf273..fd871e8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -451,11 +451,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1688221086,
-        "narHash": "sha256-cdW6qUL71cNWhHCpMPOJjlw0wzSRP0pVlRn2vqX/VVg=",
+        "lastModified": 1691464053,
+        "narHash": "sha256-D21ctOBjr2Y3vOFRXKRoFr6uNBvE8q5jC4RrMxRZXTM=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "cd99c2b3c9f160cd004318e0697f90bbd5960825",
+        "rev": "844ffa82bbe2a2779c86ab3a72ff1b4176cec467",
         "type": "github"
       },
       "original": {
diff --git a/nki-personal-do/configuration.nix b/nki-personal-do/configuration.nix
index a8ea6f3..f5977ee 100644
--- a/nki-personal-do/configuration.nix
+++ b/nki-personal-do/configuration.nix
@@ -187,7 +187,7 @@
   cloud.services.outline = {
     enable = true;
     package = pkgs.unstable.outline.overrideAttrs (attrs: {
-      patches = attrs.patches ++ [ ../modules/cloud/outline/dtth-wiki.patch ];
+      patches = if builtins.hasAttr "patches" attrs then attrs.patches else [ ] ++ [ ../modules/cloud/outline/dtth-wiki.patch ];
     });
     databaseUrl = "postgres://outline:outline@localhost/outline?sslmode=disable";
     sequelizeArguments = "--env=production-ssl-disabled";