diff --git a/.gitea/workflows/update-flake-lock.yml b/.gitea/workflows/update-flake-lock.yml
index 7183766..9088330 100644
--- a/.gitea/workflows/update-flake-lock.yml
+++ b/.gitea/workflows/update-flake-lock.yml
@@ -13,6 +13,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
+      - name: Setup sudo (required for the next step)
+        run: apt-get update && apt-get install -y sudo
       - name: Setup nix
         uses: cachix/install-nix-action@v22
       - name: Update nix flake lockfile