diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 868e5f6..eabc495 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,10 +22,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2.3.4
-      - uses: cachix/install-nix-action@v12
+      - uses: cachix/install-nix-action@v20
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: cachix/cachix-action@v10
+      - uses: cachix/cachix-action@v12
         with:
           name: aeson-combinators
           signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'