diff --git a/.github/workflows/ci-home.yml b/.github/workflows/ci-home.yml
index 7fa5fe51..88c2d2eb 100644
--- a/.github/workflows/ci-home.yml
+++ b/.github/workflows/ci-home.yml
@@ -53,7 +53,7 @@ jobs:
       matrix: ${{ fromJson(needs.generate_matrix.outputs.matrix) }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: DeterminateSystems/nix-installer-action@v15
+      - uses: DeterminateSystems/nix-installer-action@v16
       # Don't use DeterminateSystems/magic-nix-cache-action for Linux until https://github.com/DeterminateSystems/magic-nix-cache-action/issues/26 is supported
       - uses: DeterminateSystems/magic-nix-cache-action@v8
         # Always slow. Especially since GH-924
diff --git a/.github/workflows/ci-nix.yml b/.github/workflows/ci-nix.yml
index 986f3642..3b0b4dab 100644
--- a/.github/workflows/ci-nix.yml
+++ b/.github/workflows/ci-nix.yml
@@ -32,7 +32,7 @@ jobs:
     timeout-minutes: 30
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/nix-installer-action@v15
+      - uses: DeterminateSystems/nix-installer-action@v16
       - name: Print some dotfiles overviews
         run: |
           </etc/nix/nix.conf