diff --git a/ios/Classes/PdftronFlutterPlugin.m b/ios/Classes/PdftronFlutterPlugin.m
index 5a97eacb..4c3d04d6 100644
--- a/ios/Classes/PdftronFlutterPlugin.m
+++ b/ios/Classes/PdftronFlutterPlugin.m
@@ -3819,6 +3819,12 @@ + (Class)toolClassForKey:(NSString *)key
     else if ([key isEqualToString:PTPanToolKey]) {
         return [PTPanTool class];
     }
+    else if ([key isEqualToString:PTAnnotationSmartPenToolKey]) {
+        return [PTSmartPen class];
+    }
+    else if ([key isEqualToString:PTPencilKitDrawingToolKey]) {
+        return [PTPencilDrawingCreate class];
+    }
 
     return Nil;
 }
diff --git a/pubspec.yaml b/pubspec.yaml
index 8e418ea7..e91fc2bf 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: pdftron_flutter
 description: A convenience wrapper to build Flutter apps that use the PDFTron mobile SDK for smooth, flexible, and stand-alone document viewing.
-version: 1.0.1-39
+version: 1.0.1-40
 homepage: https://www.apryse.com
 repository: https://github.com/ApryseSDK/pdftron-flutter
 issue_tracker: https://github.com/ApryseSDK/pdftron-flutter/issues