diff --git a/.github/workflows/update.yaml b/.github/workflows/update.yaml
index 495b3a6..fa26b00 100644
--- a/.github/workflows/update.yaml
+++ b/.github/workflows/update.yaml
@@ -11,7 +11,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
       - name: Install Nix
-        uses: cachix/install-nix-action@v16
+        uses: cachix/install-nix-action@v20
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}