PWM output signal level 5V possible?

Hi there,
We are using PWM output signals on the 40-pins header and measuring 3V3 amplitude.
We would like to know if we could have 5V0 amplitude PWM signals ?
Is is possible to change the amplitude of the PWM outputs ?
Best regards,

An external level shift is necessary if you want to change the 3.3V output to 5V.