diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index c2fae40..04512e2 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -27,7 +27,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v8
+        uses: DeterminateSystems/nix-installer-action@v9
 
       - name: Check flake
         run: nix flake check