diff --git a/flake.nix b/flake.nix
index 56c83f7d..a5520a5a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,6 +17,8 @@
             default = pkgs.mkShell {
               name = "ar-io-node-shell";
               buildInputs = with pkgs; [
+                gnumake
+                graphviz
                 nodejs
                 sqlite-interactive
               ];