--- a/vpim.gemspec	2013-11-11 22:19:31.000000000 +0000

+++ b/vpim.gemspec	2020-05-25 21:10:55.758000000 +0000

@@ -1,4 +1,4 @@

-require 'ubygems'

+require 'rubygems'

 require 'pp'

 require 'rake'

 require './gemspec'