diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f27ceed..e519e46 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,5 +9,5 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@V27
+    - uses: cachix/install-nix-action@V28
     - run: nix run ./tests#run .