diff --git a/.github/workflows/update_flake.yml b/.github/workflows/update_flake.yml
index 41cb6156..9c029c81 100644
--- a/.github/workflows/update_flake.yml
+++ b/.github/workflows/update_flake.yml
@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # Required to count the commits
-      - uses: cachix/install-nix-action@v26
+      - uses: cachix/install-nix-action@v31
         with:
           nix_path: nixpkgs=channel:nixos-unstable
       - name: Run flake-update