diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 4b57c7d..5d5e18a 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -6,6 +6,7 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    default_image: ghcr.io/catthehacker/ubuntu:full-latest
     steps:
       - name: checkout
         uses: actions/checkout@v4