diff --git a/flake.lock b/flake.lock
index 3dd7acc..9563e0a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -67,7 +67,7 @@
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
+        "ref": "nixos-unstable-small",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index c5f4080..6563f2d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -13,7 +13,7 @@
       type = "github";
       owner = "NixOS";
       repo = "nixpkgs";
-      ref = "nixpkgs-unstable";
+      ref = "nixos-unstable-small";
     };
 
     pre-commit-hooks = {