Widget issue in sidebar

Hello,

Thank you for the wonderful plugin. I have a sidebar with the testimonial widget. One of the testimonials is a little longer than the others. In the sidebar, it overlaps the widget below it:

http://sjoliecertification.com/sjolie-certification/

Notice the first quote. Is there a way to fix this? If not I can remove this testimonial, but I really like using that one. Thank you in advance for your time.

http://ww.wp.xz.cn/plugins/testimonials-widget/