diff --git a/.github/workflows/flake-test.yml b/.github/workflows/flake-test.yml
index 61d8221..bfaded8 100644
--- a/.github/workflows/flake-test.yml
+++ b/.github/workflows/flake-test.yml
@@ -36,7 +36,7 @@ jobs:
         with:
           name: zz-flutter-client
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
-      - uses: DeterminateSystems/update-flake-lock@v27
+      - uses: DeterminateSystems/update-flake-lock@v28
         with:
           pr-title: "chore: update flake.lock"
           pr-labels: |