diff --git a/lib/mapper/version.rb b/lib/mapper/version.rb
index 6817459..e0b06e8 100644
--- a/lib/mapper/version.rb
+++ b/lib/mapper/version.rb
@@ -7,7 +7,10 @@ class Version
         MAJOR = 0
         MINOR = 1
         PATCH = 0
-        VERSION = "#{MAJOR}.#{MINOR}.#{PATCH}".freeze
+        CLASSIFIER = 'beta'.freeze
+        PRERELEASE_NUMBER = '1'.freeze
+        CHUNKS = [MAJOR, MINOR, PATCH, CLASSIFIER, PRERELEASE_NUMBER].freeze
+        VERSION = CHUNKS.reject(&:nil?).join('.').freeze
       end
     end
   end