Here is a simple updated to the Sentastico Wordpress package:

Navigate to /etc/sentora/panel/modules/sentastico/packages
Delete wordpress39.zip
Upload
wordpress41.zip

In same folder, open packages.xml with your favorite text editor:
FIND:
Code:

3.9
wordpress39

Replace with:
Code:

4.1
wordpress41

Save the updated packages.xml

That is it!