diff --git a/.github/workflows/nix-flake-update.yml b/.github/workflows/nix-flake-update.yml
index a7392b4b..e987c9d4 100644
--- a/.github/workflows/nix-flake-update.yml
+++ b/.github/workflows/nix-flake-update.yml
@@ -37,7 +37,7 @@ jobs:
 
       - id: update_nix_flake
         name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v19
+        uses: DeterminateSystems/update-flake-lock@v20
         with:
           sign-commits: false
           gpg-fingerprint: ${{ secrets.GPG_FINGERPRINT }}