diff --git a/lib/screens/search_book/widgets/book_list/sci_tech_book_search_delegate.dart b/lib/screens/search_book/widgets/book_list/sci_tech_book_search_delegate.dart
index 87c1e87..97e8e6c 100644
--- a/lib/screens/search_book/widgets/book_list/sci_tech_book_search_delegate.dart
+++ b/lib/screens/search_book/widgets/book_list/sci_tech_book_search_delegate.dart
@@ -99,7 +99,7 @@ class SciTechBookSearchDelegate extends SearchDelegate {
 
   @override
   Widget buildResults(BuildContext context) {
-    if (query.trim().length < 4) {
+    if (query.trim().length < 2) {
       return Container();
     }