diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index aa93662..0a997b5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -41,7 +41,7 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v3
     - name: Install nix
-      uses: cachix/install-nix-action@v20
+      uses: cachix/install-nix-action@v21
       with:
         nix_path: "${{ matrix.nixPath }}"
         extra_nix_config: |