diff --git a/.gitea/workflows/check-flake.yaml b/.gitea/workflows/check-flake.yaml
index 1c41452..0badd4d 100644
--- a/.gitea/workflows/check-flake.yaml
+++ b/.gitea/workflows/check-flake.yaml
@@ -3,9 +3,10 @@ on: [push]
 jobs:
   check-flake:
     runs-on: ubuntu-latest
-    container:
-      image: ubuntu:latest
     steps:
+      - name: Install sudo
+        run: apt install sudo
+
       - name: Install Nix
         uses: https://github.com/cachix/install-nix-action@v20