diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 769e1aa..d716fcd 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -12,7 +12,9 @@ jobs:
         os: [ubuntu-latest, macos-latest]
     steps:
       - uses: actions/checkout@v3
-      - uses: DeterminateSystems/nix-installer-action@main
+      # Don't upgrade Nix until https://github.com/srid/nixci/issues/35 is fixed
+      - uses: cachix/install-nix-action@v22
+      - run: nix --version
       - uses: DeterminateSystems/magic-nix-cache-action@main
       - uses: yaxitech/nix-install-pkgs-action@v3
         with: