PIK default not working


Can anyone please help me out with the issue am facing in picking the
default ruby gem as ruby-2.3.3

I have installed and done a pik list to display the gems in my windows

  1. ruby-1.8.7 => default
  2. ruby-2.3.3

Am trying to set ruby23 as a default by using
pik use ruby-2.3.3-p222 --default
pik default
ruby -v
still displaying that ruby-1.8.7 as the default one.

Any help is highly appreciated.