diff --git a/flake.nix b/flake.nix
index 7f1b974..7a51bfb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -45,6 +45,7 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
     flake-parts.url = "github:hercules-ci/flake-parts";
+    flake-utils.url = "github:numtide/flake-utils";
 
     # For generating documentation website
     nmd = {