diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 53168af..f359742 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v21
+    - uses: cachix/install-nix-action@v23
       with:
         nix_path: nixpkgs=channel:nixos-stable
         extra_nix_config: |
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6aa3f9a..5c2b0e3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v21
+    - uses: cachix/install-nix-action@v23
       with:
         nix_path: nixpkgs=channel:nixos-stable
         extra_nix_config: |