diff --git a/superset/config.py b/superset/config.py
index 889cdbe7e..bad83615c 100644
--- a/superset/config.py
+++ b/superset/config.py
@@ -362,7 +362,7 @@ DEFAULT_FEATURE_FLAGS: Dict[str, bool] = {
     # With Superset 2.0, we are updating the default so that the legacy datasource
     # editor no longer shows. Currently this is set to false so that the editor
     # option does show, but we will be depreciating it.
-    "DISABLE_LEGACY_DATASOURCE_EDITOR": False,
+    "DISABLE_LEGACY_DATASOURCE_EDITOR": True,
     # For some security concerns, you may need to enforce CSRF protection on
     # all query request to explore_json endpoint. In Superset, we use
     # `flask-csrf <https://sjl.bitbucket.io/flask-csrf/>`_ add csrf protection