diff --git a/.forgejo/workflows/demo.yaml b/.forgejo/workflows/demo.yaml
index 5504916..02b093c 100644
--- a/.forgejo/workflows/demo.yaml
+++ b/.forgejo/workflows/demo.yaml
@@ -8,6 +8,8 @@ jobs:
   build:
     name: Build and push docker image
     runs-on: docker
+    container:
+      image: node:21-bookworm
     steps:
       - name: Install node
         shell: ash -e {0}