diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 1fceadc..b8f12af 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -12,7 +12,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     container:
-      image: python:3.13-slim
+      image: python:3.13-bookworm
     steps:
       - name: Checkout
         run: |