diff --git a/.github/workflows/nix-flake.yml b/.github/workflows/nix-flake.yml
index 20562100..ae2c99db 100644
--- a/.github/workflows/nix-flake.yml
+++ b/.github/workflows/nix-flake.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v30
+    - uses: cachix/install-nix-action@master
       with:
         extra_nix_config: |
           trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= hackage-server.cachix.org-1:iw0iRh6+gsFIrxROFaAt5gKNgIHejKjIfyRdbpPYevY=