how to update the update zoom on my laptop

Same for me.  I'm getting a message that my app version needs to be 5.10.3 or higher, and to contact IT team...who the heck is my IT?  

Hello @chrisbear80 and @taxgirl17 ,

Please try these steps to fix your issues:

https://support.zoom.us/hc/en-us/articles/201362983-Uninstalling-and-reinstalling-the-Zoom-application

If this response helps, please accept the answer as an accepted solution, so others can benefit as well.