diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 6ca7491..b73fb8e 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -23,6 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: DeterminateSystems/nix-installer-action@main
       - uses: cachix/cachix-action@v15
         with:
           name: deadnix