diff --git a/.github/workflows/build-systems.yaml b/.github/workflows/build-systems.yaml
index 3b26a1c..8aaffac 100644
--- a/.github/workflows/build-systems.yaml
+++ b/.github/workflows/build-systems.yaml
@@ -21,7 +21,7 @@ jobs:
     if: needs.avoid_duplicates.outputs.should_skip != 'true'
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v19
+    - uses: cachix/install-nix-action@v20
       with:
         github_access_token: ${{ secrets.GITHUB_TOKEN }}
     - uses: cachix/cachix-action@v12