diff --git a/lib/src/widgets/text_selection.dart b/lib/src/widgets/text_selection.dart
index f11a42c4..833a21e9 100644
--- a/lib/src/widgets/text_selection.dart
+++ b/lib/src/widgets/text_selection.dart
@@ -407,6 +407,10 @@ class _TextSelectionHandleOverlayState
         break;
     }
 
+    if (newSelection.baseOffset >= newSelection.extentOffset) {
+      return; // don't allow order swapping.
+    }
+
     widget.onSelectionHandleChanged(newSelection);
   }