diff --git a/pkgs/servers/sql/postgresql/ext/pg_embedding.nix b/pkgs/servers/sql/postgresql/ext/pg_embedding.nix
index e858d6f0c5d0a..74da2ee67ccf6 100644
--- a/pkgs/servers/sql/postgresql/ext/pg_embedding.nix
+++ b/pkgs/servers/sql/postgresql/ext/pg_embedding.nix
@@ -25,5 +25,6 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ ivan ];
     platforms = postgresql.meta.platforms;
     license = licenses.asl20;
+    knownVulnerabilities = [ "As of Sept 29, 2023, the authors have abandoned the project and strongly encourage using pgvector, which is faster, has more functionality, and is actively maintained: check out the author's instructions to migrate at https://neon.tech/docs/extensions/pg_embedding#migrate-from-pg_embedding-to-pgvector" ];
   };
 }