diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 271f1d3..5ecb60c 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -4,4 +4,4 @@
 # See: https://help.github.com/articles/about-codeowners/
 
 # These owners will be the default owners for everything in the repo.
-*       @indikasampath2000 @abeykoon @Chuhaa
+*       @NipunaRanasinghe @kalaiyarasiganeshalingam
diff --git a/examples/update_chart.bal b/examples/update_chart.bal
index fe4e450..aa6aed2 100644
--- a/examples/update_chart.bal
+++ b/examples/update_chart.bal
@@ -40,9 +40,9 @@ public function main() {
         left: 99
     };
 
-    excel:Worksheet|error response = excelClient->updateChart(workbookIdOrPath, "worksheetName", "chartName",
+    excel:Chart|error response = excelClient->updateChart(workbookIdOrPath, "worksheetName", "chartName",
     updateChart);
-    if (response is excel:Worksheet) {
+    if (response is excel:Chart) {
         log:printInfo(response.toString());
     }
 }