diff --git a/lib/singleton.rb b/lib/singleton.rb
index 7ed17a769c..6da939124e 100644
--- a/lib/singleton.rb
+++ b/lib/singleton.rb
@@ -92,7 +92,7 @@
 #    p a.strip #  => nil
 #
 module Singleton
-  VERSION = "0.1.1"
+  VERSION = "0.2.0"
 
   # Raises a TypeError to prevent cloning.
   def clone