diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 4ec0e2b..0a45218 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -12,6 +12,6 @@ jobs:
         with:
           node-version: '20.x'
       - name: Install dependencies
-        run: yarn
+        run: yarn --frozen-lockfile
       - name: Build Docusaurus website  
         run: yarn build 
\ No newline at end of file