diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 8ff4def..5679e5d 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v16
+      - uses: cachix/install-nix-action@v30
       # TODO: add a binary cache
       # - uses: cachix/cachix-action@v10
       #   with:
@@ -33,5 +33,5 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v16
+      - uses: cachix/install-nix-action@v30
       - run: nix shell nixpkgs#alejandra -c alejandra -c .