Gemfile in instrumental_agent-0.12.2 vs Gemfile in instrumental_agent-0.12.3

@@ -1,8 +1,8 @@
-source :rubygems
+source "https://rubygems.org"
 
 gemspec
 
 if RUBY_VERSION < "1.9"
   # Built and installed via ext/mkrf_conf.rb
   gem 'system_timer', '~> 1.2'
-end
\ No newline at end of file
+end