Is it necessary to have male and female personas?

i have a question regarding user personas since we have a little argument in our company.

After researching our active users and all time visitors of our website we found out that around 90% of them are male and 10% are female, and that 75% of our audience are in the age range of 25-54 years.

So we created two personas to cover our user base, both are male, one is 29 years old and the other one is 48 years old.

Since we want to implement those personas company wide the marketing department argued that its not okay to not have a female persona, even though females are a minority of our audience, they said that this audience wont grow if we don't start taking females into account for the stuff we do.

Since its not a defined business goal to "acquire more female users/visitors" i am against creating a persona for a 10% minority.

So the question is: Do you think there should be male and female personas or should the personas display the current state of a companies audience?