koral update

Change-Id: Ic009971effbaf1905dfbc2ac3d06d51a1f1c416f
diff --git a/pom.xml b/pom.xml
index 7b2bb4a..116dd0e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -292,7 +292,7 @@
         <dependency>
             <groupId>de.ids_mannheim.korap</groupId>
             <artifactId>Koral</artifactId>
-            <version>0.21</version>
+            <version>0.22</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.eclipse.jetty</groupId>