Configuring Automapper in Bootstrapper violates Open-Closed Principle?

I am configuring Automapper in the Bootstrapper and I call the Bootstrap() in the Application_Start(), and I've been told that this is wrong because I have to modify my Bootstrapper class each time I have to add a new mapping, so I am violating the Open-Closed Principle.

How do you think, do I really violate this principle?

public static class Bootstrapper
{
    public static void BootStrap()
    {
        ModelBinders.Binders.DefaultBinder = new MyModelBinder();
        InputBuilder.BootStrap();
        ConfigureAutoMapper();
    }

    public static void ConfigureAutoMapper()
    {
        Mapper.CreateMap<User, UserDisplay>()
            .ForMember(o => o.UserRolesDescription,
                       opt => opt.ResolveUsing<RoleValueResolver>());
        Mapper.CreateMap<Organisation, OrganisationDisplay>();
        Mapper.CreateMap<Organisation, OrganisationOpenDisplay>();
        Mapper.CreateMap<OrganisationAddress, OrganisationAddressDisplay>();
    }    
}