diff --git a/pubspec.yaml b/pubspec.yaml
index fd1762a..4238ab5 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -95,8 +95,8 @@ dependencies:
   rrule_generator: ^0.9.0
   share_plus: ^11.1.0
   shared_preferences: ^2.3.5
-  syncfusion_flutter_calendar: ^29.1.38
-  syncfusion_flutter_pdfviewer: ^29.1.38
+  syncfusion_flutter_calendar: ^31.1.17
+  syncfusion_flutter_pdfviewer: ^31.1.17
   time_range_picker: ^2.3.0
   url_launcher: ^6.3.1
   uuid: ^4.5.1