diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 573ff9a..c71141d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,6 +10,7 @@ jobs:
       - uses: cachix/install-nix-action@v14
         with:
           nix_path: nixpkgs=channel:nixpkgs-unstable
+          install_url: https://releases.nixos.org/nix/nix-2.3.16/install
       - uses: cachix/cachix-action@v10
         with:
           name: npmlock2nix