diff --git a/.github/workflows/nix-test.yaml b/.github/workflows/nix-test.yaml
index b35c72b2..18468f78 100644
--- a/.github/workflows/nix-test.yaml
+++ b/.github/workflows/nix-test.yaml
@@ -10,7 +10,7 @@ jobs:
       with:
         fetch-depth: 0
     - name: Install Nix
-      uses: cachix/install-nix-action@ba0dd844c9180cbf77aa72a116d6fbc515d0e87b # v27
+      uses: cachix/install-nix-action@9f70348d77d0422624097c4b7a75563948901306 # v29
       with:
         extra_nix_config: |
           access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}