diff --git a/pkgs/update-nixfiles/default.nix b/pkgs/update-nixfiles/default.nix
index 4880da0..96f60bb 100644
--- a/pkgs/update-nixfiles/default.nix
+++ b/pkgs/update-nixfiles/default.nix
@@ -4,6 +4,7 @@ pkgs.writeShellApplication {
   name = "update-nixfiles";
   text = builtins.readFile ./update-nixfiles.sh;
   runtimeInputs = with pkgs; [
+    bash
     curl
     jq
     nix