diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a5e7632..f7a6cd2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
         uses: jdx/mise-action@v4
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v25
+        uses: cachix/install-nix-action@v31
         with:
           nix_path: nixpkgs=channel:nixos-unstable
           extra_nix_config: |