diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c6422e9..64a7907 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,9 +13,22 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          submodules: 'recursive'
-      - uses: cachix/install-nix-action@v26
-      - uses: DeterminateSystems/magic-nix-cache-action@v4
+          submodules: "recursive"
+      - uses: nixbuild/nix-quick-install-action@8505cd40ae3d4791ca658f2697c5767212e5ce71 # v30
+        with:
+          nix_conf: |
+            keep-env-derivations = true
+            keep-outputs = true
+      - name: Nix cache
+        uses: nix-community/cache-nix-action@135667ec418502fa5a3598af6fb9eb733888ce6a # v6
+        with:
+          # restore and save a cache using this key.
+          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
+          # if there's no cache hit, restore a cache by this prefix.
+          restore-prefixes-first-match: nix-${{ runner.os }}-
+          # collect garbage until the Nix store size (in bytes) is at most this number
+          # before trying to save a new cache.
+          gc-max-store-size-linux: 2G
       - name: Ensure flake.lock was committed
         run: ls flake.lock
       - run: nix flake check -L