diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index bbd93c823..40f48a875 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -23,9 +23,18 @@ jobs:
           distribution: 'temurin' # See 'Supported distributions' for available options
           java-version: '11'
 
+      - name: Install CMake and Ninja
+        uses: lukka/get-cmake@latest
+        with:
+          useLocalCache: true
+          useCloudCache: false
+          cmakeVersion: "~3.27.0"
+          ninjaVersion: latest
+
       - name: Execute Gradle build
         run: |
           sh ./gradlew build \
+          --stacktrace \
           -Pmavenuser=${{ secrets.MAVENUSER }} \
           -Pmavenpass=${{ secrets.MAVENPASS }} \
           -PossrhUsername=${{ secrets.OSSRHUSERNAME }} \