diff --git a/.github/workflows/flake-update.yml b/.github/workflows/flake-update.yml
index c6eb78c..70b5915 100644
--- a/.github/workflows/flake-update.yml
+++ b/.github/workflows/flake-update.yml
@@ -11,7 +11,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4.1.6
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v11
+        uses: DeterminateSystems/nix-installer-action@v12
       - name: Update flake lock
         id: update
         uses: DeterminateSystems/update-flake-lock@v22