diff --git a/doc/release-notes/rl-2611.section.md b/doc/release-notes/rl-2611.section.md
index d7206ba99e2a..79a5a1c865de 100644
--- a/doc/release-notes/rl-2611.section.md
+++ b/doc/release-notes/rl-2611.section.md
@@ -25,6 +25,8 @@
 
 - `uhttpmock` providing 0.0 ABI was removed. `uhttpmock_1_0` providing 1.0 ABI was renamed to `uhttpmock` and `uhttpmock_1_0` was kept as an alias.
 
+- `nix-serve-ng` (and `haskellPackages.nix-serve-ng`) is now built against Lix instead of CppNix, following upstream which has switched to Lix as its supported Nix implementation.
+
 - Linux kernel configuration has been moved out of the `linux-kernel` field of the platform structure into the kernel builders:
   - `linux-kernel.name` has been removed.
   - `linux-kernel.target` is available as the `target` parameter and passthru attribute on the kernel builders.
diff --git a/pkgs/development/haskell-modules/configuration-nix.nix b/pkgs/development/haskell-modules/configuration-nix.nix
index 601a7048781a..a7a440c32513 100644
--- a/pkgs/development/haskell-modules/configuration-nix.nix
+++ b/pkgs/development/haskell-modules/configuration-nix.nix
@@ -529,7 +529,9 @@ builtins.intersectAttrs super {
   # Add necessary reference to gtk3 package
   gi-dbusmenugtk3 = addPkgconfigDepend pkgs.gtk3 super.gi-dbusmenugtk3;
 
-  nix-serve-ng = lib.pipe (super.nix-serve-ng.override { nix = pkgs.nixVersions.nix_2_28; }) [
+  # Upstream has switched to Lix as its supported Nix implementation.
+  nix-serve-ng = lib.pipe (super.nix-serve-ng.override { nix = pkgs.lix; }) [
+    (enableCabalFlag "lix")
     # nix-serve-ng isn't regularly released to Hackage
     (overrideSrc {
       src = pkgs.fetchFromGitHub {