diff --git a/.github/workflows/flake-update.yml b/.github/workflows/flake-update.yml
index 0197bc5..dd56a4c 100644
--- a/.github/workflows/flake-update.yml
+++ b/.github/workflows/flake-update.yml
@@ -11,7 +11,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4.2.2
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v17
+        uses: DeterminateSystems/nix-installer-action@v18
       - name: Update flake lock
         run : |
           git config --local user.email "github-actions[bot]@users.noreply.github.com"