diff --git a/modules/nix.nix b/modules/nix.nix
index 2c7a0f4..fb1fa4a 100644
--- a/modules/nix.nix
+++ b/modules/nix.nix
@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2020-2023 Simon Bruder <simon@sbruder.de>
+# SPDX-FileCopyrightText: 2020-2024 Simon Bruder <simon@sbruder.de>
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
@@ -25,14 +25,15 @@ let
 in
 {
   nix = {
+    channel.enable = false;
+
     registry = with inputs; {
-      nixpkgs.flake = nixpkgs;
       nixpkgs-unstable.flake = nixpkgs-unstable;
     };
 
     nixPath = [
-      "nixpkgs=${inputs.nixpkgs}"
       "nixpkgs-overlays=${overlaysCompat}"
+      "nixpkgs-unstable=flake:nixpkgs-unstable"
     ];
 
     settings = {