diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 6ff3cfc3..977d5bed 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -106,17 +106,18 @@ jobs:
         -   name: Start AiiDA daemon
             run: verdi daemon start 2
 
-        -   name: Install Dependencies
-            working-directory: aiida_worktree/web/frontend
-            run: npm install
+        -   name: FastAPI
+            working-directory: aiida_worktree/web/backend
+            run: |
+                python main.py &
 
-        -   name: Start React Application
+        -   name: Install Dependencies, Start React Application
             working-directory: aiida_worktree/web/frontend
-            run: npm start
-            background: true
-
-        -   name: Wait for React App to Start
-            run: sleep 10
+            run: |
+                npm install
+                # npm run build
+                npm run start &
+                sleep 5
 
         -   name: Run pytest
             env:
diff --git a/tests/web/test_frontend.py b/tests/web/test_frontend.py
index 506b1e90..d3abdfcf 100644
--- a/tests/web/test_frontend.py
+++ b/tests/web/test_frontend.py
@@ -15,7 +15,8 @@ def test_homepage(page):
         pytest.fail("Element 'a[href='/wortre']' not found on the page")
 
 
-def test_worktree(page):
+def test_worktree(page, wt_calcfunction):
+    wt_calcfunction.submit(wait=True)
     page.goto("http://localhost:3000/worktree")
 
     # Check for the existence of a specific element on the page