diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 71f4dc1..747c094 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v26
+      - uses: DeterminateSystems/nix-installer-action@v10
+      - uses: DeterminateSystems/flake-checker-action@v5
+        with:
+          fail-mode: true
       - run: nix flake check --all-systems
 
   build:
@@ -26,5 +29,6 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v26
+      - uses: DeterminateSystems/nix-installer-action@v10
+      - uses: DeterminateSystems/magic-nix-cache-action@v4
       - run: nix build -L .#${{ matrix.package }}