diff --git a/flake.nix b/flake.nix
index 7a551fa..1d6ecc0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,8 +1,8 @@
 {
   description = "A Python API for various tools I use at work.";
   inputs = {
-    nixpkgs.url = github:NixOS/nixpkgs/nixos-unstable;
-    flake-utils.url = github:numtide/flake-utils;
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
     poetry2nix = {
       url = "github:nix-community/poetry2nix";
       inputs.nixpkgs.follows = "nixpkgs";