diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 11f1e56..70ec7e3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2
-    - uses: cachix/install-nix-action@v15
+    - uses: cachix/install-nix-action@v16
       with:
         nix_path: nixpkgs=channel:nixpkgs-unstable
         extra_nix_config: |