diff --git a/doc.go b/doc.go
index 74ba7417..3bfe3a16 100644
--- a/doc.go
+++ b/doc.go
@@ -2,4 +2,4 @@
 package mail
 
 // VERSION is used in the default user agent string
-const VERSION = "0.1.9"
+const VERSION = "0.2.2"