diff --git a/flake.nix b/flake.nix
index 51d3812..36e54fa 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,7 +14,9 @@
         pkgs = nixpkgs.legacyPackages.${system};
       in
       {
-        devShells.default = pkgs.mkShell { };
+        devShells.default = pkgs.mkShell {
+          packages = with pkgs; [ bats ];
+        };
       }
     );
 }