diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 75c538f..b4bc252 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -5,7 +5,8 @@ on: [push]
 jobs:
   flutter:
     runs-on: ubuntu-latest
-    container: openpriv/flutter-desktop
+    container: 
+      image: openpriv/flutter-desktop
     steps:
       - uses: actions/checkout@v3
       - run: flutter --version