diff --git a/pom.xml b/pom.xml
index 0c871fa..ad40799 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
   <groupId>github.weichware10</groupId>
   <artifactId>util</artifactId>
-  <version>v2.2-SNAPSHOT</version>
+  <version>v2.1.1</version>
 
   <name>util</name>
   <!-- FIXME change it to the project's website -->