SQL & PL/SQL

Hi All,
I need a help to add hyphen in my select criteria so that it does not filter the hypen.
I am using below REGEXP_REPLACE to get my output, everything is fine now except the Hyphen (-) character is not recognized.

select REGEXP_REPLACE('abcd-efgh123{}$(),', '[^[a-z,A-Z,0-9,(,),{,},_,$,.,'',[:space:]]]*','') from dual;

Can you please help?

Thanks