--- 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'