diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 284c6d9..0132ebe 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -36,7 +36,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix on self-hosted ARC runners
-        uses: cachix/install-nix-action@v27
+        uses: cachix/install-nix-action@V28
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
 
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 95776d1..abf267a 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix on self-hosted ARC runners
-        uses: cachix/install-nix-action@v27
+        uses: cachix/install-nix-action@V28
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}