diff --git a/src/sage/all.py b/src/sage/all.py
index c87c9372e9..862fca4fcc 100644
--- a/src/sage/all.py
+++ b/src/sage/all.py
@@ -306,6 +306,7 @@ warnings.filters.remove(('ignore', None, DeprecationWarning, None, 0))
 # Ignore all deprecations from IPython etc.
 warnings.filterwarnings('ignore', category=DeprecationWarning,
     module='.*(IPython|ipykernel|jupyter_client|jupyter_core|nbformat|notebook|ipywidgets|storemagic)')
+warnings.filterwarnings('ignore', category=DeprecationWarning, message=r".*The import 'werkzeug.ImmutableDict' is deprecated")
 # Ignore collections.abc warnings, there are a lot of them but they are
 # harmless.
 warnings.filterwarnings('ignore', category=DeprecationWarning,