diff --git a/pkgs/servers/sql/postgresql/ext/lantern.nix b/pkgs/servers/sql/postgresql/ext/lantern.nix
index 0138594cd105..2a3acbd5f354 100644
--- a/pkgs/servers/sql/postgresql/ext/lantern.nix
+++ b/pkgs/servers/sql/postgresql/ext/lantern.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation (finalAttrs: {
     description = "PostgreSQL vector database extension for building AI applications";
     homepage = "https://lantern.dev/";
     changelog = "https://github.com/lanterndata/lantern/blob/${finalAttrs.src.rev}/CHANGELOG.md";
-    license = licenses.bsl11;
+    license = licenses.agpl3Only;
     maintainers = [ ];
     platforms = postgresql.meta.platforms;
     # error: use of undeclared identifier 'aligned_alloc'