diff --git a/.github/workflows/cachix.yaml b/.github/workflows/cachix.yaml
index c14e1ea..d983a50 100644
--- a/.github/workflows/cachix.yaml
+++ b/.github/workflows/cachix.yaml
@@ -16,6 +16,8 @@ jobs:
     - uses: actions/checkout@v4
 
     - uses: cachix/install-nix-action@v25
+      with:
+        nix_path: nixpkgs=channel:nixos-24.05
 
     - name: Run alejandra
       run: nix run nixpkgs#alejandra -- --check .