diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 64104a7..f16e280 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -17,7 +17,7 @@ jobs:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
       - name: "flake: update inputs"
-        uses: DeterminateSystems/update-flake-lock@v17
+        uses: DeterminateSystems/update-flake-lock@v18
         with:
           pr-title: "flake: update inputs"
           pr-labels: dependencies