diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 7635d387..111a178e 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -44,7 +44,7 @@ jobs:
         uses: DeterminateSystems/magic-nix-cache-action@v6
 
       - name: Check Nix flake inputs
-        uses: DeterminateSystems/flake-checker-action@v7
+        uses: DeterminateSystems/flake-checker-action@v9
         with:
           ignore-missing-flake-lock: false
           fail-mode: true