diff --git a/.github/workflows/update-flake-lock.yml b/.github/workflows/update-flake-lock.yml
index 8806fae3..ab0a2512 100644
--- a/.github/workflows/update-flake-lock.yml
+++ b/.github/workflows/update-flake-lock.yml
@@ -15,7 +15,7 @@ jobs:
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v19
+        uses: DeterminateSystems/update-flake-lock@v20
         with:
           pr-labels: |
             merge-queue