diff --git a/.github/workflows/update-flake-lock.yaml b/.github/workflows/update-flake-lock.yaml
index bd357ef..f02b0c5 100644
--- a/.github/workflows/update-flake-lock.yaml
+++ b/.github/workflows/update-flake-lock.yaml
@@ -12,9 +12,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4.1.1
       - name: Install Nix
-        uses: cachix/install-nix-action@v25
+        uses: DeterminateSystems/nix-installer-action@main
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v21
+        uses: DeterminateSystems/update-flake-lock@main
         with:
           pr-title: "Update flake.lock ."
           pr-labels: |