diff --git a/.github/workflows/test-nix.yml b/.github/workflows/test-nix.yml
index 2301308..9b64ee8 100644
--- a/.github/workflows/test-nix.yml
+++ b/.github/workflows/test-nix.yml
@@ -16,6 +16,6 @@ jobs:
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@v16
       - name: Magic Nix Cache
-        uses: DeterminateSystems/magic-nix-cache-action@v8
+        uses: DeterminateSystems/magic-nix-cache-action@v9
       - name: Build
         run: nix-build shell.nix