diff --git a/lib/github_changelog_generator/parser.rb b/lib/github_changelog_generator/parser.rb
index c5a8fca..b927b9a 100644
--- a/lib/github_changelog_generator/parser.rb
+++ b/lib/github_changelog_generator/parser.rb
@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 require 'optparse'
-require 'PP'
+require 'pp'
 require_relative 'version'
 
 module GitHubChangelogGenerator
@@ -104,4 +104,4 @@ module GitHubChangelogGenerator
       options
     end
   end
-end
\ No newline at end of file
+end