Updated Krill dependency

Change-Id: I152f70b94e02805a8320ccff13b9040e20865def
diff --git a/pom.xml b/pom.xml
index 514e0e6..bcf54fd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -381,7 +381,7 @@
         <dependency>
             <groupId>de.ids_mannheim.korap</groupId>
             <artifactId>Krill</artifactId>
-            <version>0.55.8</version>
+            <version>0.55.9</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.xerial</groupId>