diff --git a/flake.nix b/flake.nix
index 4d63eef..09c01c3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,6 +31,7 @@
           default = pkgs.mkShell {
             packages = with pkgs; [
               godot
+              gdtoolkit_4
               krita
               gimp
               pixelorama