diff --git a/.github/workflows/flake-update.yml b/.github/workflows/flake-update.yml
index d20b50c3..5903b13d 100644
--- a/.github/workflows/flake-update.yml
+++ b/.github/workflows/flake-update.yml
@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: DeterminateSystems/nix-installer-action@v12
+      - uses: DeterminateSystems/nix-installer-action@v13
       - uses: DeterminateSystems/magic-nix-cache-action@v7
       - uses: DeterminateSystems/update-flake-lock@v23
         with: