diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index cda9443..67dea44 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -13,5 +13,5 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/nix-installer-action@v14
+      - uses: DeterminateSystems/nix-installer-action@v15
       - run: nix flake check
diff --git a/.github/workflows/flake-update.yaml b/.github/workflows/flake-update.yaml
index eafc7d8..1439195 100644
--- a/.github/workflows/flake-update.yaml
+++ b/.github/workflows/flake-update.yaml
@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@v4
       
       - name: Install nix
-        uses: DeterminateSystems/nix-installer-action@v14
+        uses: DeterminateSystems/nix-installer-action@v15
       
       - name: Update flake lock
         uses: DeterminateSystems/update-flake-lock@v24