diff --git a/flake.nix b/flake.nix
index af6f915..a91d435 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,6 +18,7 @@
     let nix-config-module =
         {
           nix.registry.nixpkgs.flake = nixpkgs;
+          nix.registry.unstable.flake = nixpkgs-unstable;
           system.configurationRevision = nixpkgs.lib.mkIf (self ? rev) self.rev;
         };
       rachel-home-module =