diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index aa9568b..f737e0e 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -40,7 +40,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v15
+        uses: DeterminateSystems/nix-installer-action@v16
 
       - name: Set up Nix cache
         uses: cachix/cachix-action@v15
diff --git a/.github/workflows/upgrade-flakes.yaml b/.github/workflows/upgrade-flakes.yaml
index 252e849..2fb446d 100644
--- a/.github/workflows/upgrade-flakes.yaml
+++ b/.github/workflows/upgrade-flakes.yaml
@@ -12,7 +12,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v15
+        uses: DeterminateSystems/nix-installer-action@v16
 
       - name: Update flake.lock
         uses: DeterminateSystems/update-flake-lock@v23