problem with SOAPUI when i send request with attribut containt character &&

Hi,

I use SOAPUI for testing SOAP service .

 in the header of my request, I have the attribute Password with character &

example

<wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">111&525</wsse:Password>       

when I run the request  I get 400 Bad Reques

how i can solve this problem.

Thank you .