diff --git a/lib/common/widgets/custom_sliver_persistent_header_delegate.dart b/lib/common/widgets/custom_sliver_persistent_header_delegate.dart
index e54f024b..b010f5b5 100644
--- a/lib/common/widgets/custom_sliver_persistent_header_delegate.dart
+++ b/lib/common/widgets/custom_sliver_persistent_header_delegate.dart
@@ -6,12 +6,14 @@ class CustomSliverPersistentHeaderDelegate
     required this.child,
     required this.bgColor,
     double extent = 45,
+    this.needRebuild,
   })  : _minExtent = extent,
         _maxExtent = extent;
   final double _minExtent;
   final double _maxExtent;
   final Widget child;
   final Color? bgColor;
+  final bool? needRebuild;
 
   @override
   Widget build(
@@ -44,8 +46,8 @@ class CustomSliverPersistentHeaderDelegate
   double get minExtent => _minExtent;
 
   @override
-  bool shouldRebuild(
-      covariant CustomSliverPersistentHeaderDelegate oldDelegate) {
-    return oldDelegate.bgColor != bgColor;
+  bool shouldRebuild(CustomSliverPersistentHeaderDelegate oldDelegate) {
+    return oldDelegate.bgColor != bgColor ||
+        (needRebuild == true && oldDelegate.child != child);
   }
 }
diff --git a/lib/pages/dynamics_mention/view.dart b/lib/pages/dynamics_mention/view.dart
index 1531ea08..dd49a010 100644
--- a/lib/pages/dynamics_mention/view.dart
+++ b/lib/pages/dynamics_mention/view.dart
@@ -243,6 +243,7 @@ class _DynMentionPanelState extends State<DynMentionPanel> {
                       pinned: true,
                       delegate: CustomSliverPersistentHeaderDelegate(
                         extent: 40,
+                        needRebuild: true,
                         bgColor: theme.colorScheme.surface,
                         child: Container(
                           height: 40,