diff --git a/.github/workflows/checks.yaml b/.github/workflows/checks.yaml
index d09a5c1..62fa709 100644
--- a/.github/workflows/checks.yaml
+++ b/.github/workflows/checks.yaml
@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - uses: cachix/install-nix-action@v18
+      - uses: cachix/install-nix-action@v20
         with:
           install_url: https://github.com/numtide/nix-unstable-installer/releases/download/nix-2.10.0pre20220629_b7eb4ac/install
           extra_nix_config: |