diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eecfc89..44bd023 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/flake-checker-action@v9
-      - uses: cachix/install-nix-action@V28
+      - uses: cachix/install-nix-action@v29
         with:
           github_access_token: ${{ secrets.GH_TOKEN }}
       - uses: cachix/cachix-action@v15