diff --git a/lib/set.rb b/lib/set.rb
index 8ac9ce45b1..2aa2c06889 100644
--- a/lib/set.rb
+++ b/lib/set.rb
@@ -216,7 +216,7 @@
 #   has been modified while an element in the set.
 #
 class Set
-  VERSION = "1.1.0"
+  VERSION = "1.1.1"
 
   include Enumerable