diff --git a/flake.nix b/flake.nix
index 3e03a82..006a5a2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,7 +3,7 @@
 
   inputs = {
     nixpkgs = {
-      url = "github:NixOS/nixpkgs/nixos-unstable";
+      url = "github:NixOS/nixpkgs/nixos-unstable-small";
     };
     nixpkgs-update = {
       url = "github:ryantm/nixpkgs-update";