diff --git a/spine_items/widgets.py b/spine_items/widgets.py
index 9dce0051..b72acc62 100644
--- a/spine_items/widgets.py
+++ b/spine_items/widgets.py
@@ -252,7 +252,7 @@ def dropEvent(self, event):
         self.setText(url.toLocalFile())
 
 
-KNOWN_SQL_DIALECTS = ("mysql", "sqlite", "mssql", "postgresql", "oracle")
+KNOWN_SQL_DIALECTS = ("mysql", "sqlite", "mssql", "postgresql")
 
 
 class UrlSelectorMixin: