diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3bb6896..bea2044 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,7 +15,6 @@ jobs:
     - uses: actions/checkout@v3
     - uses: cachix/install-nix-action@v20
       with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
         nix_path: nixpkgs=channel:nixpkgs-unstable
         extra_nix_config: |
           keep-outputs = true