diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 9eb0ac1..605c8ec 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -11,6 +11,8 @@ jobs:
         uses: https://gitea.com/actions/setup-node@v4 
         with:
           node-version: '18.4.0' 
+      - name: Install Yarn
+        run: npm install -g yarn
       - name: Install dependencies  
         run: yarn install
       - name: Build Docusaurus website