diff --git a/pkgs/applications/networking/instant-messengers/nheko/default.nix b/pkgs/applications/networking/instant-messengers/nheko/default.nix
index 0d34a0a4362..6e78a9034ae 100644
--- a/pkgs/applications/networking/instant-messengers/nheko/default.nix
+++ b/pkgs/applications/networking/instant-messengers/nheko/default.nix
@@ -70,5 +70,6 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ ekleog fpletz ];
     platforms = platforms.unix;
     license = licenses.gpl3Plus;
+    knownVulnerabilities = [ "No longer maintained" ];
   };
 }