diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index eaa7b53..7d11558 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -10,6 +10,7 @@ jobs:
       image: ghcr.io/catthehacker/ubuntu:act-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v27
+      - run: ls /
       - run: nix flake check
       - run: nix build