diff --git a/.github/workflows/update-flake-lock.yaml b/.github/workflows/update-flake-lock.yaml
index 47b09ce..bc04502 100644
--- a/.github/workflows/update-flake-lock.yaml
+++ b/.github/workflows/update-flake-lock.yaml
@@ -12,7 +12,7 @@ jobs:
       - name: Install Nix
         uses: cachix/install-nix-action@v18
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@vX
+        uses: DeterminateSystems/update-flake-lock@v14
         with:
           token: ${{ secrets.PAT }}
           pr-title: "Update flake.lock"