diff --git a/superset/dashboards/filters.py b/superset/dashboards/filters.py
index 20a7041033fb9..7b02c23679540 100644
--- a/superset/dashboards/filters.py
+++ b/superset/dashboards/filters.py
@@ -224,14 +224,14 @@ def apply(self, query: Query, value: Any) -> Query:
             return query.filter(
                 and_(
                     Dashboard.certified_by.isnot(None),
-                    Dashboard.certified_by != '',
+                    Dashboard.certified_by != "",
                 )
             )
         if value is False:
             return query.filter(
                 or_(
                     Dashboard.certified_by.is_(None),
-                    Dashboard.certified_by == '',
+                    Dashboard.certified_by == "",
                 )
             )
         return query