diff --git a/flake.nix b/flake.nix
index ee112be..4b6d836 100644
--- a/flake.nix
+++ b/flake.nix
@@ -13,12 +13,8 @@
   flake-utils.lib.eachDefaultSystem (system:
     let
     # nixpkgs for native system.
-    pkgs = import nixpkgs {
-      inherit system;
-      overlays = [
-        inputs.colmena.overlay
-      ];
-    };
+    pkgs = import nixpkgs { inherit system; };
+    colmena = inputs.colmena.packages."${system}".colmena;
     # Native VM config.
     riversong = nixpkgs.lib.nixosSystem {
       inherit pkgs;
@@ -32,7 +28,7 @@
     in rec {
       # Install colmena in dev shell for deployment.
       devShell = pkgs.mkShell {
-        packages = with pkgs; [ colmena ];
+        packages = [ colmena ];
       };
       # Run testing VM using `nix run`
       packages.default = riversong.config.system.build.vm;