diff --git a/.github/workflows/update-flake-lock.yml b/.github/workflows/update-flake-lock.yml
index faf5ac9..528aa3e 100644
--- a/.github/workflows/update-flake-lock.yml
+++ b/.github/workflows/update-flake-lock.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Install Nix
         uses: cachix/install-nix-action@v20
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v17
+        uses: DeterminateSystems/update-flake-lock@v18
         with:
           token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}
           pr-body: |