Upgrading Groovy
diff --git a/pom.xml b/pom.xml
index 23d18f8..46d22fd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -423,7 +423,7 @@
 
     <cocoon.version>3.0.0-alpha-3</cocoon.version>
 
-    <groovy.version>3.0.0-rc-1</groovy.version>
+    <groovy.version>3.0.0-rc-2</groovy.version>
 
     <flowable.version>6.4.2</flowable.version>