diff --git a/.github/workflows/cachix.yaml b/.github/workflows/cachix.yaml
index de676d7..87aad8c 100644
--- a/.github/workflows/cachix.yaml
+++ b/.github/workflows/cachix.yaml
@@ -16,11 +16,9 @@ jobs:
     - uses: actions/checkout@v4
 
     - uses: cachix/install-nix-action@v27
-      with:
-        nix_path: nixpkgs=channel:nixos-24.05
 
     - name: Run alejandra
-      run: nix run nixpkgs#alejandra -- --check .
+      run: nix develop --command alejandra --check .
 
   flake-check:
     name: Flake check