diff --git a/flake.nix b/flake.nix
index 8e5ad30..e263ba8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -37,6 +37,7 @@
     devShells = forAllSystems (system: pkgs: {
       default = pkgs.mkShell {
         buildInputs = with pkgs; [
+          alejandra
           stylua
         ];
       };