diff --git a/.github/workflows/nix-flake-update.yml b/.github/workflows/nix-flake-update.yml
index eceb95f..89ce464 100644
--- a/.github/workflows/nix-flake-update.yml
+++ b/.github/workflows/nix-flake-update.yml
@@ -12,7 +12,7 @@ jobs:
   nfu:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: DeterminateSystems/determinate-nix-action@v3
     - name: Update Nix Flake Lock
       run: nix flake update