diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 51529dc..70038ff 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -11,5 +11,5 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/nix-installer-action@v15
+      - uses: DeterminateSystems/nix-installer-action@v16
       - run: make check
diff --git a/.github/workflows/site.yml b/.github/workflows/site.yml
index a5f08a9..1d703e8 100644
--- a/.github/workflows/site.yml
+++ b/.github/workflows/site.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/nix-installer-action@v15
+      - uses: DeterminateSystems/nix-installer-action@v16
       - run: make build
       - name: Upload artifact
         id: deployment
diff --git a/.github/workflows/update-deps.yml b/.github/workflows/update-deps.yml
index 5fe6b83..605069c 100644
--- a/.github/workflows/update-deps.yml
+++ b/.github/workflows/update-deps.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/nix-installer-action@v15
+      - uses: DeterminateSystems/nix-installer-action@v16
       - run: nix develop --command make update
       - id: datetime
         run: |