diff --git a/.github/workflows/upgrade-flakes.yml b/.github/workflows/upgrade-flakes.yml
index 0a5f905..c15d3eb 100644
--- a/.github/workflows/upgrade-flakes.yml
+++ b/.github/workflows/upgrade-flakes.yml
@@ -17,6 +17,6 @@ jobs:
             experimental-features = nix-command flakes
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v12
+        uses: DeterminateSystems/update-flake-lock@v13
         with:
           token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}