diff --git a/flake.nix b/flake.nix
index f6074df..c68c703 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,8 +22,9 @@
       with pkgs; {
         formatter = nixpkgs-fmt;
         devShells.default = mkShell {
-          buildInputs = [
+          packages = [
             mdbook
+            tailwindcss-language-server
           ];
         };
         packages.default = callPackage ./default.nix { };