diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7b689e2..a7cf5e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v20
+    - uses: cachix/install-nix-action@v30
       with:
         github_access_token: ${{ secrets.GITHUB_TOKEN }}
     - run: nix build