diff --git a/flake.nix b/flake.nix
index d740419..c9f49d6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -81,6 +81,7 @@
         devShell = pkgs.mkShell {
           buildInputs = [
             pkgs.gnumake
+            pkgs.inventory
             pkgs.poetry
           ];
         };