diff --git a/flake.nix b/flake.nix
index 0ba1b1d0..1d44e66d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -7,7 +7,8 @@
 
   inputs =
     {
-      nixos.url = "github:nixos/nixpkgs/release-21.11";
+      # Track channels with commits tested and built by hydra
+      nixos.url = "github:nixos/nixpkgs/nixos-21.11";
       latest.url = "github:nixos/nixpkgs/nixos-unstable";
 
       digga.url = "github:divnix/digga";
@@ -40,6 +41,8 @@
 
       nixos-hardware.url = "github:nixos/nixos-hardware";
 
+      nixos-generators.url = "github:nix-community/nixos-generators";
+
       # PubSolarOS additions
       nix-dram.url = "github:dramforever/nix-dram";
       nix-dram.inputs.nixpkgs.follows = "latest";