diff --git a/.github/workflows/update-vendor-hash.yml b/.github/workflows/update-vendor-hash.yml
index 6c455d9..93e1990 100644
--- a/.github/workflows/update-vendor-hash.yml
+++ b/.github/workflows/update-vendor-hash.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v31
         with:
           nix_path: nixpkgs=channel:nixpkgs-unstable