diff --git a/.github/workflows/flake-update.yml b/.github/workflows/flake-update.yml
index 5b3811ab..41bbc40b 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@v14
+      - uses: DeterminateSystems/nix-installer-action@v15
       - uses: DeterminateSystems/magic-nix-cache-action@v8
       - uses: DeterminateSystems/update-flake-lock@v24
         with: