diff --git a/flake.nix b/flake.nix
index 7eebb14..4b5b8d3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -47,7 +47,7 @@
       {
         inherit pkgs;
         packages = {
-          default = pkgs.nixVersions.nix_2_18;
+          default = pkgs.nix;
           inherit (pkgs) nix-doc nix-eval-jobs;
         };
 
@@ -57,6 +57,7 @@
 
         checks = {
           inherit (self.packages.${system}) default nix-eval-jobs;
+          inherit (pkgs) nixos-option;
         } // lib.optionalAttrs (lib.elem system linux64BitSystems) {
           # wrongMajor intentionally not included here since it is expected to fail
           inherit (self.nixosTests.${system}) it-builds;