diff --git a/modules/fish.nix b/modules/fish.nix
index da4ca2a..bb0973c 100644
--- a/modules/fish.nix
+++ b/modules/fish.nix
@@ -93,7 +93,6 @@
 
       nf = "nix flake";
       nfu = "nix flake update";
-      nfl = "nix flake lock --update-input";
       npr = "nixpkgs-review pr --run fish --print-result";
       nd = "nix develop --command fish";
       nb = "nix build";
diff --git a/modules/nix.nix b/modules/nix.nix
index 097f73b..10c0692 100644
--- a/modules/nix.nix
+++ b/modules/nix.nix
@@ -2,7 +2,7 @@
 
 {
   nix = {
-    package = pkgs.nixFlakes;
+    package = with pkgs.nixVersions; nix_2_19;
 
     settings = {
       experimental-features = [ "nix-command" "flakes" "repl-flake" ];