diff --git a/backend/internal/modules/chat/conversation.go b/backend/internal/modules/chat/conversation.go
index c94e485..7d09ab2 100644
--- a/backend/internal/modules/chat/conversation.go
+++ b/backend/internal/modules/chat/conversation.go
@@ -15,7 +15,8 @@ func (r *Repository) ListConversations(ctx context.Context, principal Principal,
 	var total int64
 	countDB := db.Table("chat_conversations AS c").
 		Joins("JOIN chat_participants AS cp ON cp.conversation_id = c.id").
-		Where("cp.participant_type = ? AND cp.participant_id = ?", principal.Type, principal.ID)
+		Where("cp.participant_type = ? AND cp.participant_id = ?", principal.Type, principal.ID).
+		Where("c.status = ?", "active")
 	if err := countDB.Count(&total).Error; err != nil {
 		return nil, err
 	}
@@ -23,6 +24,7 @@ func (r *Repository) ListConversations(ctx context.Context, principal Principal,
 	var rows []conversationRow
 	offset := (page - 1) * pageSize
 	err := r.conversationQuery(ctx, principal).
+		Where("c.status = ?", "active").
 		Order("COALESCE(c.last_message_at, c.created_at) DESC, c.id DESC").
 		Offset(offset).
 		Limit(pageSize).
diff --git a/backend/internal/modules/chat/participant.go b/backend/internal/modules/chat/participant.go
index 544258d..f7a4d4f 100644
--- a/backend/internal/modules/chat/participant.go
+++ b/backend/internal/modules/chat/participant.go
@@ -54,7 +54,9 @@ func (r *Repository) CountUnreadMessages(ctx context.Context, principal Principa
 	var total int64
 	err := r.db.WithContext(ctx).Table("chat_messages AS cm").
 		Joins("JOIN chat_participants AS cp ON cp.conversation_id = cm.conversation_id").
+		Joins("JOIN chat_conversations AS c ON c.id = cm.conversation_id").
 		Where("cp.participant_type = ? AND cp.participant_id = ?", principal.Type, principal.ID).
+		Where("c.status = ?", "active").
 		Where("NOT (cm.sender_type = ? AND cm.sender_id = ?)", principal.Type, principal.ID).
 		Where("(cp.last_read_at IS NULL OR cm.created_at > cp.last_read_at)").
 		Count(&total).Error