SharePoint 2013 office web app server How to change wild card certificate name in office web app farm.

Hi All,

When we configured office web app server in SharePoint 2013 that time we need to specified the wild card certificate name. and now the issue is this is certificate is going to expire and I have installed the same but name is different so I need to update the new wild card certificate name. May I know how to change the wild card certificate name instead of reconfigure the officeWebAppFarm.

Please help me here.