diff --git a/vizro-core/examples/scratch_dev/app.py b/vizro-core/examples/scratch_dev/app.py
index c1d9aee9a..80b378299 100644
--- a/vizro-core/examples/scratch_dev/app.py
+++ b/vizro-core/examples/scratch_dev/app.py
@@ -1,4 +1,5 @@
 """asdf."""
+
 import plotly.graph_objs as go
 import plotly.io as pio
 import vizro.models as vm