Bump version to 2.2.2

Change-Id: I081b0ae75df07a9baa837e1a6cb6046e5e1109d4
diff --git a/pom.xml b/pom.xml
index 96b19f1..47f4d01 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>groupId</groupId>
     <artifactId>KorAP-Tokenizer</artifactId>
-    <version>2.2.1</version>
+    <version>2.2.2</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>