diff --git a/lib/multipart/post/version.rb b/lib/multipart/post/version.rb
index b21d317..8a65e32 100644
--- a/lib/multipart/post/version.rb
+++ b/lib/multipart/post/version.rb
@@ -22,6 +22,6 @@
 
 module Multipart
   module Post
-    VERSION = "2.2.0"
+    VERSION = "2.2.1"
   end
 end