diff --git a/.github/workflows/cachix.yaml b/.github/workflows/cachix.yaml
index c14e1ea..de676d7 100644
--- a/.github/workflows/cachix.yaml
+++ b/.github/workflows/cachix.yaml
@@ -15,7 +15,9 @@ jobs:
     steps:
     - uses: actions/checkout@v4
 
-    - uses: cachix/install-nix-action@v25
+    - uses: cachix/install-nix-action@v27
+      with:
+        nix_path: nixpkgs=channel:nixos-24.05
 
     - name: Run alejandra
       run: nix run nixpkgs#alejandra -- --check .